Home / 15,199.30-22,767.36-7,781.32

Finding the Fourth Proportional to 15,199.30, 22,767.36 and 7,781.32

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Solution

The fourth proportional to 15,199.30, 22,767.36 and 7,781.32 is: 11,655.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,199.30 : 22,767.36 = 7,781.32 : x
  2. Step 2: Convert to fraction form
    15,199.30/22,767.36 = 7,781.32/x
  3. Step 3: Cross multiply
    15,199.30x = 22,767.36 × 7,781.32
  4. Step 4: Simplify right side
    15,199.30x = 177,160,113.72
  5. Step 5: Solve for x
    x = 177,160,113.72/15,199.30
  6. Step 6: Final answer
    x = 11,655.81

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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.