Home / 10,209.17-15,315.93-3,545.87

Finding the Fourth Proportional to 10,209.17, 15,315.93 and 3,545.87

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Solution

The fourth proportional to 10,209.17, 15,315.93 and 3,545.87 is: 5,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.17 : 15,315.93 = 3,545.87 : x
  2. Step 2: Convert to fraction form
    10,209.17/15,315.93 = 3,545.87/x
  3. Step 3: Cross multiply
    10,209.17x = 15,315.93 × 3,545.87
  4. Step 4: Simplify right side
    10,209.17x = 54,308,343.86
  5. Step 5: Solve for x
    x = 54,308,343.86/10,209.17
  6. Step 6: Final answer
    x = 5,319.57

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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.