Home / 15,539.31-21,444.75-8,824.82

Finding the Fourth Proportional to 15,539.31, 21,444.75 and 8,824.82

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Solution

The fourth proportional to 15,539.31, 21,444.75 and 8,824.82 is: 12,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.31 : 21,444.75 = 8,824.82 : x
  2. Step 2: Convert to fraction form
    15,539.31/21,444.75 = 8,824.82/x
  3. Step 3: Cross multiply
    15,539.31x = 21,444.75 × 8,824.82
  4. Step 4: Simplify right side
    15,539.31x = 189,245,951.47
  5. Step 5: Solve for x
    x = 189,245,951.47/15,539.31
  6. Step 6: Final answer
    x = 12,178.53

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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.