Home / 10,156.32-15,213.96-7,954.56

Finding the Fourth Proportional to 10,156.32, 15,213.96 and 7,954.56

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Solution

The fourth proportional to 10,156.32, 15,213.96 and 7,954.56 is: 11,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.32 : 15,213.96 = 7,954.56 : x
  2. Step 2: Convert to fraction form
    10,156.32/15,213.96 = 7,954.56/x
  3. Step 3: Cross multiply
    10,156.32x = 15,213.96 × 7,954.56
  4. Step 4: Simplify right side
    10,156.32x = 121,020,357.66
  5. Step 5: Solve for x
    x = 121,020,357.66/10,156.32
  6. Step 6: Final answer
    x = 11,915.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.