Home / 15,571.07-21,488.07-8,497.55

Finding the Fourth Proportional to 15,571.07, 21,488.07 and 8,497.55

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Solution

The fourth proportional to 15,571.07, 21,488.07 and 8,497.55 is: 11,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.07 : 21,488.07 = 8,497.55 : x
  2. Step 2: Convert to fraction form
    15,571.07/21,488.07 = 8,497.55/x
  3. Step 3: Cross multiply
    15,571.07x = 21,488.07 × 8,497.55
  4. Step 4: Simplify right side
    15,571.07x = 182,595,949.23
  5. Step 5: Solve for x
    x = 182,595,949.23/15,571.07
  6. Step 6: Final answer
    x = 11,726.62

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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.