Home / 15,070.59-20,797.31-8,356.22

Finding the Fourth Proportional to 15,070.59, 20,797.31 and 8,356.22

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Solution

The fourth proportional to 15,070.59, 20,797.31 and 8,356.22 is: 11,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.59 : 20,797.31 = 8,356.22 : x
  2. Step 2: Convert to fraction form
    15,070.59/20,797.31 = 8,356.22/x
  3. Step 3: Cross multiply
    15,070.59x = 20,797.31 × 8,356.22
  4. Step 4: Simplify right side
    15,070.59x = 173,786,752.00
  5. Step 5: Solve for x
    x = 173,786,752.00/15,070.59
  6. Step 6: Final answer
    x = 11,531.52

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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.