Home / 11,715.95-16,151.18-8,352.92

Finding the Fourth Proportional to 11,715.95, 16,151.18 and 8,352.92

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Solution

The fourth proportional to 11,715.95, 16,151.18 and 8,352.92 is: 11,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.95 : 16,151.18 = 8,352.92 : x
  2. Step 2: Convert to fraction form
    11,715.95/16,151.18 = 8,352.92/x
  3. Step 3: Cross multiply
    11,715.95x = 16,151.18 × 8,352.92
  4. Step 4: Simplify right side
    11,715.95x = 134,909,391.93
  5. Step 5: Solve for x
    x = 134,909,391.93/11,715.95
  6. Step 6: Final answer
    x = 11,515.02

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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.