Home / 11,217.84-15,479.56-6,502.40

Finding the Fourth Proportional to 11,217.84, 15,479.56 and 6,502.40

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Solution

The fourth proportional to 11,217.84, 15,479.56 and 6,502.40 is: 8,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.84 : 15,479.56 = 6,502.40 : x
  2. Step 2: Convert to fraction form
    11,217.84/15,479.56 = 6,502.40/x
  3. Step 3: Cross multiply
    11,217.84x = 15,479.56 × 6,502.40
  4. Step 4: Simplify right side
    11,217.84x = 100,654,290.94
  5. Step 5: Solve for x
    x = 100,654,290.94/11,217.84
  6. Step 6: Final answer
    x = 8,972.70

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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.