Home / 15,548.86-21,457.29-8,475.13

Finding the Fourth Proportional to 15,548.86, 21,457.29 and 8,475.13

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Solution

The fourth proportional to 15,548.86, 21,457.29 and 8,475.13 is: 11,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.86 : 21,457.29 = 8,475.13 : x
  2. Step 2: Convert to fraction form
    15,548.86/21,457.29 = 8,475.13/x
  3. Step 3: Cross multiply
    15,548.86x = 21,457.29 × 8,475.13
  4. Step 4: Simplify right side
    15,548.86x = 181,853,172.54
  5. Step 5: Solve for x
    x = 181,853,172.54/15,548.86
  6. Step 6: Final answer
    x = 11,695.60

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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.