Home / 15,759.18-21,757.79-9,798.95

Finding the Fourth Proportional to 15,759.18, 21,757.79 and 9,798.95

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Solution

The fourth proportional to 15,759.18, 21,757.79 and 9,798.95 is: 13,528.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,759.18 : 21,757.79 = 9,798.95 : x
  2. Step 2: Convert to fraction form
    15,759.18/21,757.79 = 9,798.95/x
  3. Step 3: Cross multiply
    15,759.18x = 21,757.79 × 9,798.95
  4. Step 4: Simplify right side
    15,759.18x = 213,203,575.21
  5. Step 5: Solve for x
    x = 213,203,575.21/15,759.18
  6. Step 6: Final answer
    x = 13,528.85

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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.