Home / 9,153.13-12,631.26-5,174.95

Finding the Fourth Proportional to 9,153.13, 12,631.26 and 5,174.95

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Solution

The fourth proportional to 9,153.13, 12,631.26 and 5,174.95 is: 7,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.13 : 12,631.26 = 5,174.95 : x
  2. Step 2: Convert to fraction form
    9,153.13/12,631.26 = 5,174.95/x
  3. Step 3: Cross multiply
    9,153.13x = 12,631.26 × 5,174.95
  4. Step 4: Simplify right side
    9,153.13x = 65,366,138.94
  5. Step 5: Solve for x
    x = 65,366,138.94/9,153.13
  6. Step 6: Final answer
    x = 7,141.40

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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.