Home / 15,070.55-20,797.13-8,356.05

Finding the Fourth Proportional to 15,070.55, 20,797.13 and 8,356.05

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Solution

The fourth proportional to 15,070.55, 20,797.13 and 8,356.05 is: 11,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.55 : 20,797.13 = 8,356.05 : x
  2. Step 2: Convert to fraction form
    15,070.55/20,797.13 = 8,356.05/x
  3. Step 3: Cross multiply
    15,070.55x = 20,797.13 × 8,356.05
  4. Step 4: Simplify right side
    15,070.55x = 173,781,816.36
  5. Step 5: Solve for x
    x = 173,781,816.36/15,070.55
  6. Step 6: Final answer
    x = 11,531.22

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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.