Home / 15,070.12-20,796.76-8,356.24

Finding the Fourth Proportional to 15,070.12, 20,796.76 and 8,356.24

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Solution

The fourth proportional to 15,070.12, 20,796.76 and 8,356.24 is: 11,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.12 : 20,796.76 = 8,356.24 : x
  2. Step 2: Convert to fraction form
    15,070.12/20,796.76 = 8,356.24/x
  3. Step 3: Cross multiply
    15,070.12x = 20,796.76 × 8,356.24
  4. Step 4: Simplify right side
    15,070.12x = 173,782,717.78
  5. Step 5: Solve for x
    x = 173,782,717.78/15,070.12
  6. Step 6: Final answer
    x = 11,531.61

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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.