Home / 12,113.28-16,711.68-9,281.16

Finding the Fourth Proportional to 12,113.28, 16,711.68 and 9,281.16

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Solution

The fourth proportional to 12,113.28, 16,711.68 and 9,281.16 is: 12,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.28 : 16,711.68 = 9,281.16 : x
  2. Step 2: Convert to fraction form
    12,113.28/16,711.68 = 9,281.16/x
  3. Step 3: Cross multiply
    12,113.28x = 16,711.68 × 9,281.16
  4. Step 4: Simplify right side
    12,113.28x = 155,103,775.95
  5. Step 5: Solve for x
    x = 155,103,775.95/12,113.28
  6. Step 6: Final answer
    x = 12,804.44

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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.