Home / 14,825.28-20,457.72-8,538.12

Finding the Fourth Proportional to 14,825.28, 20,457.72 and 8,538.12

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Solution

The fourth proportional to 14,825.28, 20,457.72 and 8,538.12 is: 11,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,825.28 : 20,457.72 = 8,538.12 : x
  2. Step 2: Convert to fraction form
    14,825.28/20,457.72 = 8,538.12/x
  3. Step 3: Cross multiply
    14,825.28x = 20,457.72 × 8,538.12
  4. Step 4: Simplify right side
    14,825.28x = 174,670,468.29
  5. Step 5: Solve for x
    x = 174,670,468.29/14,825.28
  6. Step 6: Final answer
    x = 11,781.93

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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.