Home / 9,125.68-12,591.06-5,587.60

Finding the Fourth Proportional to 9,125.68, 12,591.06 and 5,587.60

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Solution

The fourth proportional to 9,125.68, 12,591.06 and 5,587.60 is: 7,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.68 : 12,591.06 = 5,587.60 : x
  2. Step 2: Convert to fraction form
    9,125.68/12,591.06 = 5,587.60/x
  3. Step 3: Cross multiply
    9,125.68x = 12,591.06 × 5,587.60
  4. Step 4: Simplify right side
    9,125.68x = 70,353,806.86
  5. Step 5: Solve for x
    x = 70,353,806.86/9,125.68
  6. Step 6: Final answer
    x = 7,709.43

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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.