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Finding the Fourth Proportional to 8,650.64, 11,925.96 and 6,525.20

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Solution

The fourth proportional to 8,650.64, 11,925.96 and 6,525.20 is: 8,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.64 : 11,925.96 = 6,525.20 : x
  2. Step 2: Convert to fraction form
    8,650.64/11,925.96 = 6,525.20/x
  3. Step 3: Cross multiply
    8,650.64x = 11,925.96 × 6,525.20
  4. Step 4: Simplify right side
    8,650.64x = 77,819,274.19
  5. Step 5: Solve for x
    x = 77,819,274.19/8,650.64
  6. Step 6: Final answer
    x = 8,995.78

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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.