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Finding the Fourth Proportional to 8,859.92, 13,292.30 and 2,620.24

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Solution

The fourth proportional to 8,859.92, 13,292.30 and 2,620.24 is: 3,931.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.92 : 13,292.30 = 2,620.24 : x
  2. Step 2: Convert to fraction form
    8,859.92/13,292.30 = 2,620.24/x
  3. Step 3: Cross multiply
    8,859.92x = 13,292.30 × 2,620.24
  4. Step 4: Simplify right side
    8,859.92x = 34,829,016.15
  5. Step 5: Solve for x
    x = 34,829,016.15/8,859.92
  6. Step 6: Final answer
    x = 3,931.08

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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.