Home / 9,153.90-12,632.52-5,174.76

Finding the Fourth Proportional to 9,153.90, 12,632.52 and 5,174.76

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Solution

The fourth proportional to 9,153.90, 12,632.52 and 5,174.76 is: 7,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.90 : 12,632.52 = 5,174.76 : x
  2. Step 2: Convert to fraction form
    9,153.90/12,632.52 = 5,174.76/x
  3. Step 3: Cross multiply
    9,153.90x = 12,632.52 × 5,174.76
  4. Step 4: Simplify right side
    9,153.90x = 65,370,259.20
  5. Step 5: Solve for x
    x = 65,370,259.20/9,153.90
  6. Step 6: Final answer
    x = 7,141.25

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Double scale
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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.