Home / 7,471.56-11,200.38-4,689.78

Finding the Fourth Proportional to 7,471.56, 11,200.38 and 4,689.78

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Solution

The fourth proportional to 7,471.56, 11,200.38 and 4,689.78 is: 7,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.56 : 11,200.38 = 4,689.78 : x
  2. Step 2: Convert to fraction form
    7,471.56/11,200.38 = 4,689.78/x
  3. Step 3: Cross multiply
    7,471.56x = 11,200.38 × 4,689.78
  4. Step 4: Simplify right side
    7,471.56x = 52,527,318.12
  5. Step 5: Solve for x
    x = 52,527,318.12/7,471.56
  6. Step 6: Final answer
    x = 7,030.30

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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.