Home / 9,139.28-13,708.89-3,588.74

Finding the Fourth Proportional to 9,139.28, 13,708.89 and 3,588.74

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Solution

The fourth proportional to 9,139.28, 13,708.89 and 3,588.74 is: 5,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.28 : 13,708.89 = 3,588.74 : x
  2. Step 2: Convert to fraction form
    9,139.28/13,708.89 = 3,588.74/x
  3. Step 3: Cross multiply
    9,139.28x = 13,708.89 × 3,588.74
  4. Step 4: Simplify right side
    9,139.28x = 49,197,641.90
  5. Step 5: Solve for x
    x = 49,197,641.90/9,139.28
  6. Step 6: Final answer
    x = 5,383.10

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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.