Home / 11,631.66-16,045.47-8,088.72

Finding the Fourth Proportional to 11,631.66, 16,045.47 and 8,088.72

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Solution

The fourth proportional to 11,631.66, 16,045.47 and 8,088.72 is: 11,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.66 : 16,045.47 = 8,088.72 : x
  2. Step 2: Convert to fraction form
    11,631.66/16,045.47 = 8,088.72/x
  3. Step 3: Cross multiply
    11,631.66x = 16,045.47 × 8,088.72
  4. Step 4: Simplify right side
    11,631.66x = 129,787,314.10
  5. Step 5: Solve for x
    x = 129,787,314.10/11,631.66
  6. Step 6: Final answer
    x = 11,158.11

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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.