Home / 15,187.34-20,960.15-8,475.30

Finding the Fourth Proportional to 15,187.34, 20,960.15 and 8,475.30

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Solution

The fourth proportional to 15,187.34, 20,960.15 and 8,475.30 is: 11,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.34 : 20,960.15 = 8,475.30 : x
  2. Step 2: Convert to fraction form
    15,187.34/20,960.15 = 8,475.30/x
  3. Step 3: Cross multiply
    15,187.34x = 20,960.15 × 8,475.30
  4. Step 4: Simplify right side
    15,187.34x = 177,643,516.92
  5. Step 5: Solve for x
    x = 177,643,516.92/15,187.34
  6. Step 6: Final answer
    x = 11,696.82

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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.