Home / 15,902.83-21,945.18-8,829.71

Finding the Fourth Proportional to 15,902.83, 21,945.18 and 8,829.71

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Solution

The fourth proportional to 15,902.83, 21,945.18 and 8,829.71 is: 12,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,902.83 : 21,945.18 = 8,829.71 : x
  2. Step 2: Convert to fraction form
    15,902.83/21,945.18 = 8,829.71/x
  3. Step 3: Cross multiply
    15,902.83x = 21,945.18 × 8,829.71
  4. Step 4: Simplify right side
    15,902.83x = 193,769,531.31
  5. Step 5: Solve for x
    x = 193,769,531.31/15,902.83
  6. Step 6: Final answer
    x = 12,184.59

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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.