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Finding the Fourth Proportional to 8,810.59, 13,215.87 and 3,612.82

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Solution

The fourth proportional to 8,810.59, 13,215.87 and 3,612.82 is: 5,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.59 : 13,215.87 = 3,612.82 : x
  2. Step 2: Convert to fraction form
    8,810.59/13,215.87 = 3,612.82/x
  3. Step 3: Cross multiply
    8,810.59x = 13,215.87 × 3,612.82
  4. Step 4: Simplify right side
    8,810.59x = 47,746,559.45
  5. Step 5: Solve for x
    x = 47,746,559.45/8,810.59
  6. Step 6: Final answer
    x = 5,419.22

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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.