Home / 15,195.24-20,952.90-9,880.20

Finding the Fourth Proportional to 15,195.24, 20,952.90 and 9,880.20

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Solution

The fourth proportional to 15,195.24, 20,952.90 and 9,880.20 is: 13,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.24 : 20,952.90 = 9,880.20 : x
  2. Step 2: Convert to fraction form
    15,195.24/20,952.90 = 9,880.20/x
  3. Step 3: Cross multiply
    15,195.24x = 20,952.90 × 9,880.20
  4. Step 4: Simplify right side
    15,195.24x = 207,018,842.58
  5. Step 5: Solve for x
    x = 207,018,842.58/15,195.24
  6. Step 6: Final answer
    x = 13,623.93

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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.