Home / 10,160.28-15,166.80-8,782.56

Finding the Fourth Proportional to 10,160.28, 15,166.80 and 8,782.56

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Solution

The fourth proportional to 10,160.28, 15,166.80 and 8,782.56 is: 13,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,160.28 : 15,166.80 = 8,782.56 : x
  2. Step 2: Convert to fraction form
    10,160.28/15,166.80 = 8,782.56/x
  3. Step 3: Cross multiply
    10,160.28x = 15,166.80 × 8,782.56
  4. Step 4: Simplify right side
    10,160.28x = 133,203,331.01
  5. Step 5: Solve for x
    x = 133,203,331.01/10,160.28
  6. Step 6: Final answer
    x = 13,110.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.