Home / 18,457.90-25,471.08-10,500.88

Finding the Fourth Proportional to 18,457.90, 25,471.08 and 10,500.88

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Solution

The fourth proportional to 18,457.90, 25,471.08 and 10,500.88 is: 14,490.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.90 : 25,471.08 = 10,500.88 : x
  2. Step 2: Convert to fraction form
    18,457.90/25,471.08 = 10,500.88/x
  3. Step 3: Cross multiply
    18,457.90x = 25,471.08 × 10,500.88
  4. Step 4: Simplify right side
    18,457.90x = 267,468,754.55
  5. Step 5: Solve for x
    x = 267,468,754.55/18,457.90
  6. Step 6: Final answer
    x = 14,490.75

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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.