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Finding the Fourth Proportional to 8,886.08, 13,338.80 and 8,672.16

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Solution

The fourth proportional to 8,886.08, 13,338.80 and 8,672.16 is: 13,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.08 : 13,338.80 = 8,672.16 : x
  2. Step 2: Convert to fraction form
    8,886.08/13,338.80 = 8,672.16/x
  3. Step 3: Cross multiply
    8,886.08x = 13,338.80 × 8,672.16
  4. Step 4: Simplify right side
    8,886.08x = 115,676,207.81
  5. Step 5: Solve for x
    x = 115,676,207.81/8,886.08
  6. Step 6: Final answer
    x = 13,017.69

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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.