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Finding the Fourth Proportional to 8,916.08, 13,357.08 and 5,407.16

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Solution

The fourth proportional to 8,916.08, 13,357.08 and 5,407.16 is: 8,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.08 : 13,357.08 = 5,407.16 : x
  2. Step 2: Convert to fraction form
    8,916.08/13,357.08 = 5,407.16/x
  3. Step 3: Cross multiply
    8,916.08x = 13,357.08 × 5,407.16
  4. Step 4: Simplify right side
    8,916.08x = 72,223,868.69
  5. Step 5: Solve for x
    x = 72,223,868.69/8,916.08
  6. Step 6: Final answer
    x = 8,100.41

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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.