Home / 15,548.58-21,457.31-8,475.39

Finding the Fourth Proportional to 15,548.58, 21,457.31 and 8,475.39

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Solution

The fourth proportional to 15,548.58, 21,457.31 and 8,475.39 is: 11,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.58 : 21,457.31 = 8,475.39 : x
  2. Step 2: Convert to fraction form
    15,548.58/21,457.31 = 8,475.39/x
  3. Step 3: Cross multiply
    15,548.58x = 21,457.31 × 8,475.39
  4. Step 4: Simplify right side
    15,548.58x = 181,859,028.22
  5. Step 5: Solve for x
    x = 181,859,028.22/15,548.58
  6. Step 6: Final answer
    x = 11,696.18

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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.