Home / 15,534.77-21,438.23-8,461.19

Finding the Fourth Proportional to 15,534.77, 21,438.23 and 8,461.19

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Solution

The fourth proportional to 15,534.77, 21,438.23 and 8,461.19 is: 11,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,534.77 : 21,438.23 = 8,461.19 : x
  2. Step 2: Convert to fraction form
    15,534.77/21,438.23 = 8,461.19/x
  3. Step 3: Cross multiply
    15,534.77x = 21,438.23 × 8,461.19
  4. Step 4: Simplify right side
    15,534.77x = 181,392,937.29
  5. Step 5: Solve for x
    x = 181,392,937.29/15,534.77
  6. Step 6: Final answer
    x = 11,676.58

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Half scale
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Double scale
Find fourth proportional to 15,535.77, 21,439.61 and 8,462.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.