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Finding the Fourth Proportional to 8,525.71, 12,780.30 and 4,367.68

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Solution

The fourth proportional to 8,525.71, 12,780.30 and 4,367.68 is: 6,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.71 : 12,780.30 = 4,367.68 : x
  2. Step 2: Convert to fraction form
    8,525.71/12,780.30 = 4,367.68/x
  3. Step 3: Cross multiply
    8,525.71x = 12,780.30 × 4,367.68
  4. Step 4: Simplify right side
    8,525.71x = 55,820,260.70
  5. Step 5: Solve for x
    x = 55,820,260.70/8,525.71
  6. Step 6: Final answer
    x = 6,547.29

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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.