Home / 9,128.97-12,598.07-5,354.37

Finding the Fourth Proportional to 9,128.97, 12,598.07 and 5,354.37

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Solution

The fourth proportional to 9,128.97, 12,598.07 and 5,354.37 is: 7,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.97 : 12,598.07 = 5,354.37 : x
  2. Step 2: Convert to fraction form
    9,128.97/12,598.07 = 5,354.37/x
  3. Step 3: Cross multiply
    9,128.97x = 12,598.07 × 5,354.37
  4. Step 4: Simplify right side
    9,128.97x = 67,454,772.95
  5. Step 5: Solve for x
    x = 67,454,772.95/9,128.97
  6. Step 6: Final answer
    x = 7,389.09

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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.