Home / 9,124.17-12,591.44-5,145.39

Finding the Fourth Proportional to 9,124.17, 12,591.44 and 5,145.39

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Solution

The fourth proportional to 9,124.17, 12,591.44 and 5,145.39 is: 7,100.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.17 : 12,591.44 = 5,145.39 : x
  2. Step 2: Convert to fraction form
    9,124.17/12,591.44 = 5,145.39/x
  3. Step 3: Cross multiply
    9,124.17x = 12,591.44 × 5,145.39
  4. Step 4: Simplify right side
    9,124.17x = 64,787,869.46
  5. Step 5: Solve for x
    x = 64,787,869.46/9,124.17
  6. Step 6: Final answer
    x = 7,100.69

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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.