Home / 9,153.57-12,631.51-5,173.91

Finding the Fourth Proportional to 9,153.57, 12,631.51 and 5,173.91

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Solution

The fourth proportional to 9,153.57, 12,631.51 and 5,173.91 is: 7,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.57 : 12,631.51 = 5,173.91 : x
  2. Step 2: Convert to fraction form
    9,153.57/12,631.51 = 5,173.91/x
  3. Step 3: Cross multiply
    9,153.57x = 12,631.51 × 5,173.91
  4. Step 4: Simplify right side
    9,153.57x = 65,354,286.58
  5. Step 5: Solve for x
    x = 65,354,286.58/9,153.57
  6. Step 6: Final answer
    x = 7,139.76

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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.