Home / 15,017.76-20,722.70-8,302.48

Finding the Fourth Proportional to 15,017.76, 20,722.70 and 8,302.48

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Solution

The fourth proportional to 15,017.76, 20,722.70 and 8,302.48 is: 11,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.76 : 20,722.70 = 8,302.48 : x
  2. Step 2: Convert to fraction form
    15,017.76/20,722.70 = 8,302.48/x
  3. Step 3: Cross multiply
    15,017.76x = 20,722.70 × 8,302.48
  4. Step 4: Simplify right side
    15,017.76x = 172,049,802.30
  5. Step 5: Solve for x
    x = 172,049,802.30/15,017.76
  6. Step 6: Final answer
    x = 11,456.42

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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.