Home / 9,159.13-12,641.49-5,180.41

Finding the Fourth Proportional to 9,159.13, 12,641.49 and 5,180.41

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Solution

The fourth proportional to 9,159.13, 12,641.49 and 5,180.41 is: 7,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.13 : 12,641.49 = 5,180.41 : x
  2. Step 2: Convert to fraction form
    9,159.13/12,641.49 = 5,180.41/x
  3. Step 3: Cross multiply
    9,159.13x = 12,641.49 × 5,180.41
  4. Step 4: Simplify right side
    9,159.13x = 65,488,012.10
  5. Step 5: Solve for x
    x = 65,488,012.10/9,159.13
  6. Step 6: Final answer
    x = 7,150.03

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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.