Home / 11,907.17-16,432.89-6,603.69

Finding the Fourth Proportional to 11,907.17, 16,432.89 and 6,603.69

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Solution

The fourth proportional to 11,907.17, 16,432.89 and 6,603.69 is: 9,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.17 : 16,432.89 = 6,603.69 : x
  2. Step 2: Convert to fraction form
    11,907.17/16,432.89 = 6,603.69/x
  3. Step 3: Cross multiply
    11,907.17x = 16,432.89 × 6,603.69
  4. Step 4: Simplify right side
    11,907.17x = 108,517,711.36
  5. Step 5: Solve for x
    x = 108,517,711.36/11,907.17
  6. Step 6: Final answer
    x = 9,113.65

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Double scale
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Similar ratio
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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.