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Finding the Fourth Proportional to 8,893.68, 13,322.48 and 8,488.16

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Solution

The fourth proportional to 8,893.68, 13,322.48 and 8,488.16 is: 12,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.68 : 13,322.48 = 8,488.16 : x
  2. Step 2: Convert to fraction form
    8,893.68/13,322.48 = 8,488.16/x
  3. Step 3: Cross multiply
    8,893.68x = 13,322.48 × 8,488.16
  4. Step 4: Simplify right side
    8,893.68x = 113,083,341.84
  5. Step 5: Solve for x
    x = 113,083,341.84/8,893.68
  6. Step 6: Final answer
    x = 12,715.02

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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.