Home / 9,130.59-12,600.78-5,150.25

Finding the Fourth Proportional to 9,130.59, 12,600.78 and 5,150.25

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Solution

The fourth proportional to 9,130.59, 12,600.78 and 5,150.25 is: 7,107.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.59 : 12,600.78 = 5,150.25 : x
  2. Step 2: Convert to fraction form
    9,130.59/12,600.78 = 5,150.25/x
  3. Step 3: Cross multiply
    9,130.59x = 12,600.78 × 5,150.25
  4. Step 4: Simplify right side
    9,130.59x = 64,897,167.20
  5. Step 5: Solve for x
    x = 64,897,167.20/9,130.59
  6. Step 6: Final answer
    x = 7,107.66

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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.