Home / 10,931.86-16,400.76-4,362.70

Finding the Fourth Proportional to 10,931.86, 16,400.76 and 4,362.70

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Solution

The fourth proportional to 10,931.86, 16,400.76 and 4,362.70 is: 6,545.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.86 : 16,400.76 = 4,362.70 : x
  2. Step 2: Convert to fraction form
    10,931.86/16,400.76 = 4,362.70/x
  3. Step 3: Cross multiply
    10,931.86x = 16,400.76 × 4,362.70
  4. Step 4: Simplify right side
    10,931.86x = 71,551,595.65
  5. Step 5: Solve for x
    x = 71,551,595.65/10,931.86
  6. Step 6: Final answer
    x = 6,545.24

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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.