Home / 15,599.67-21,521.41-9,620.92

Finding the Fourth Proportional to 15,599.67, 21,521.41 and 9,620.92

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Solution

The fourth proportional to 15,599.67, 21,521.41 and 9,620.92 is: 13,273.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.67 : 21,521.41 = 9,620.92 : x
  2. Step 2: Convert to fraction form
    15,599.67/21,521.41 = 9,620.92/x
  3. Step 3: Cross multiply
    15,599.67x = 21,521.41 × 9,620.92
  4. Step 4: Simplify right side
    15,599.67x = 207,055,763.90
  5. Step 5: Solve for x
    x = 207,055,763.90/15,599.67
  6. Step 6: Final answer
    x = 13,273.09

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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.