Home / 11,363.52-15,677.12-8,386.40

Finding the Fourth Proportional to 11,363.52, 15,677.12 and 8,386.40

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Solution

The fourth proportional to 11,363.52, 15,677.12 and 8,386.40 is: 11,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,363.52 : 15,677.12 = 8,386.40 : x
  2. Step 2: Convert to fraction form
    11,363.52/15,677.12 = 8,386.40/x
  3. Step 3: Cross multiply
    11,363.52x = 15,677.12 × 8,386.40
  4. Step 4: Simplify right side
    11,363.52x = 131,474,599.17
  5. Step 5: Solve for x
    x = 131,474,599.17/11,363.52
  6. Step 6: Final answer
    x = 11,569.88

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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.