Home / 9,289.68-12,818.91-5,512.20

Finding the Fourth Proportional to 9,289.68, 12,818.91 and 5,512.20

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Solution

The fourth proportional to 9,289.68, 12,818.91 and 5,512.20 is: 7,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.68 : 12,818.91 = 5,512.20 : x
  2. Step 2: Convert to fraction form
    9,289.68/12,818.91 = 5,512.20/x
  3. Step 3: Cross multiply
    9,289.68x = 12,818.91 × 5,512.20
  4. Step 4: Simplify right side
    9,289.68x = 70,660,331.61
  5. Step 5: Solve for x
    x = 70,660,331.61/9,289.68
  6. Step 6: Final answer
    x = 7,606.33

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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.