Home / 11,641.28-16,065.12-6,605.12

Finding the Fourth Proportional to 11,641.28, 16,065.12 and 6,605.12

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Solution

The fourth proportional to 11,641.28, 16,065.12 and 6,605.12 is: 9,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.28 : 16,065.12 = 6,605.12 : x
  2. Step 2: Convert to fraction form
    11,641.28/16,065.12 = 6,605.12/x
  3. Step 3: Cross multiply
    11,641.28x = 16,065.12 × 6,605.12
  4. Step 4: Simplify right side
    11,641.28x = 106,112,045.41
  5. Step 5: Solve for x
    x = 106,112,045.41/11,641.28
  6. Step 6: Final answer
    x = 9,115.15

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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.