Home / 9,893.28-13,651.68-5,915.20

Finding the Fourth Proportional to 9,893.28, 13,651.68 and 5,915.20

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Solution

The fourth proportional to 9,893.28, 13,651.68 and 5,915.20 is: 8,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.28 : 13,651.68 = 5,915.20 : x
  2. Step 2: Convert to fraction form
    9,893.28/13,651.68 = 5,915.20/x
  3. Step 3: Cross multiply
    9,893.28x = 13,651.68 × 5,915.20
  4. Step 4: Simplify right side
    9,893.28x = 80,752,417.54
  5. Step 5: Solve for x
    x = 80,752,417.54/9,893.28
  6. Step 6: Final answer
    x = 8,162.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.