Home / 15,571.44-21,488.29-8,497.91

Finding the Fourth Proportional to 15,571.44, 21,488.29 and 8,497.91

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Solution

The fourth proportional to 15,571.44, 21,488.29 and 8,497.91 is: 11,726.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.44 : 21,488.29 = 8,497.91 : x
  2. Step 2: Convert to fraction form
    15,571.44/21,488.29 = 8,497.91/x
  3. Step 3: Cross multiply
    15,571.44x = 21,488.29 × 8,497.91
  4. Step 4: Simplify right side
    15,571.44x = 182,605,586.95
  5. Step 5: Solve for x
    x = 182,605,586.95/15,571.44
  6. Step 6: Final answer
    x = 11,726.96

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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.