Home / 9,138.26-13,689.12-4,201.13

Finding the Fourth Proportional to 9,138.26, 13,689.12 and 4,201.13

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Solution

The fourth proportional to 9,138.26, 13,689.12 and 4,201.13 is: 6,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.26 : 13,689.12 = 4,201.13 : x
  2. Step 2: Convert to fraction form
    9,138.26/13,689.12 = 4,201.13/x
  3. Step 3: Cross multiply
    9,138.26x = 13,689.12 × 4,201.13
  4. Step 4: Simplify right side
    9,138.26x = 57,509,772.71
  5. Step 5: Solve for x
    x = 57,509,772.71/9,138.26
  6. Step 6: Final answer
    x = 6,293.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.