Home / 12,500.28-18,755.46-4,711.32

Finding the Fourth Proportional to 12,500.28, 18,755.46 and 4,711.32

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Solution

The fourth proportional to 12,500.28, 18,755.46 and 4,711.32 is: 7,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.28 : 18,755.46 = 4,711.32 : x
  2. Step 2: Convert to fraction form
    12,500.28/18,755.46 = 4,711.32/x
  3. Step 3: Cross multiply
    12,500.28x = 18,755.46 × 4,711.32
  4. Step 4: Simplify right side
    12,500.28x = 88,362,973.81
  5. Step 5: Solve for x
    x = 88,362,973.81/12,500.28
  6. Step 6: Final answer
    x = 7,068.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.