Home / 10,129.56-13,974-6,591.48

Finding the Fourth Proportional to 10,129.56, 13,974 and 6,591.48

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Solution

The fourth proportional to 10,129.56, 13,974 and 6,591.48 is: 9,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.56 : 13,974 = 6,591.48 : x
  2. Step 2: Convert to fraction form
    10,129.56/13,974 = 6,591.48/x
  3. Step 3: Cross multiply
    10,129.56x = 13,974 × 6,591.48
  4. Step 4: Simplify right side
    10,129.56x = 92,109,341.52
  5. Step 5: Solve for x
    x = 92,109,341.52/10,129.56
  6. Step 6: Final answer
    x = 9,093.12

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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.