Home / 9,150.85-12,631.13-5,373.92

Finding the Fourth Proportional to 9,150.85, 12,631.13 and 5,373.92

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Solution

The fourth proportional to 9,150.85, 12,631.13 and 5,373.92 is: 7,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.85 : 12,631.13 = 5,373.92 : x
  2. Step 2: Convert to fraction form
    9,150.85/12,631.13 = 5,373.92/x
  3. Step 3: Cross multiply
    9,150.85x = 12,631.13 × 5,373.92
  4. Step 4: Simplify right side
    9,150.85x = 67,878,632.41
  5. Step 5: Solve for x
    x = 67,878,632.41/9,150.85
  6. Step 6: Final answer
    x = 7,417.74

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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.