Home / 9,931.11-14,894.91-3,689.66

Finding the Fourth Proportional to 9,931.11, 14,894.91 and 3,689.66

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Solution

The fourth proportional to 9,931.11, 14,894.91 and 3,689.66 is: 5,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.11 : 14,894.91 = 3,689.66 : x
  2. Step 2: Convert to fraction form
    9,931.11/14,894.91 = 3,689.66/x
  3. Step 3: Cross multiply
    9,931.11x = 14,894.91 × 3,689.66
  4. Step 4: Simplify right side
    9,931.11x = 54,957,079.16
  5. Step 5: Solve for x
    x = 54,957,079.16/9,931.11
  6. Step 6: Final answer
    x = 5,533.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.