Home / 7,411.86-11,095.11-5,331.78

Finding the Fourth Proportional to 7,411.86, 11,095.11 and 5,331.78

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Solution

The fourth proportional to 7,411.86, 11,095.11 and 5,331.78 is: 7,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.86 : 11,095.11 = 5,331.78 : x
  2. Step 2: Convert to fraction form
    7,411.86/11,095.11 = 5,331.78/x
  3. Step 3: Cross multiply
    7,411.86x = 11,095.11 × 5,331.78
  4. Step 4: Simplify right side
    7,411.86x = 59,156,685.60
  5. Step 5: Solve for x
    x = 59,156,685.60/7,411.86
  6. Step 6: Final answer
    x = 7,981.35

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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.