Home / 10,471.14-15,706.31-3,545.64

Finding the Fourth Proportional to 10,471.14, 15,706.31 and 3,545.64

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Solution

The fourth proportional to 10,471.14, 15,706.31 and 3,545.64 is: 5,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.14 : 15,706.31 = 3,545.64 : x
  2. Step 2: Convert to fraction form
    10,471.14/15,706.31 = 3,545.64/x
  3. Step 3: Cross multiply
    10,471.14x = 15,706.31 × 3,545.64
  4. Step 4: Simplify right side
    10,471.14x = 55,688,903.26
  5. Step 5: Solve for x
    x = 55,688,903.26/10,471.14
  6. Step 6: Final answer
    x = 5,318.32

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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.