Home / 8,688.62-11,981.28-7,433.83

Finding the Fourth Proportional to 8,688.62, 11,981.28 and 7,433.83

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Solution

The fourth proportional to 8,688.62, 11,981.28 and 7,433.83 is: 10,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.62 : 11,981.28 = 7,433.83 : x
  2. Step 2: Convert to fraction form
    8,688.62/11,981.28 = 7,433.83/x
  3. Step 3: Cross multiply
    8,688.62x = 11,981.28 × 7,433.83
  4. Step 4: Simplify right side
    8,688.62x = 89,066,798.70
  5. Step 5: Solve for x
    x = 89,066,798.70/8,688.62
  6. Step 6: Final answer
    x = 10,250.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.