Home / 15,534.57-21,437.73-8,461.02

Finding the Fourth Proportional to 15,534.57, 21,437.73 and 8,461.02

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Solution

The fourth proportional to 15,534.57, 21,437.73 and 8,461.02 is: 11,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,534.57 : 21,437.73 = 8,461.02 : x
  2. Step 2: Convert to fraction form
    15,534.57/21,437.73 = 8,461.02/x
  3. Step 3: Cross multiply
    15,534.57x = 21,437.73 × 8,461.02
  4. Step 4: Simplify right side
    15,534.57x = 181,385,062.28
  5. Step 5: Solve for x
    x = 181,385,062.28/15,534.57
  6. Step 6: Final answer
    x = 11,676.22

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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.