Home / 15,011.59-20,716.01-8,205.73

Finding the Fourth Proportional to 15,011.59, 20,716.01 and 8,205.73

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Solution

The fourth proportional to 15,011.59, 20,716.01 and 8,205.73 is: 11,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.59 : 20,716.01 = 8,205.73 : x
  2. Step 2: Convert to fraction form
    15,011.59/20,716.01 = 8,205.73/x
  3. Step 3: Cross multiply
    15,011.59x = 20,716.01 × 8,205.73
  4. Step 4: Simplify right side
    15,011.59x = 169,989,984.74
  5. Step 5: Solve for x
    x = 169,989,984.74/15,011.59
  6. Step 6: Final answer
    x = 11,323.92

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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.