Home / 15,017.19-20,722.90-8,302.41

Finding the Fourth Proportional to 15,017.19, 20,722.90 and 8,302.41

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Solution

The fourth proportional to 15,017.19, 20,722.90 and 8,302.41 is: 11,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.19 : 20,722.90 = 8,302.41 : x
  2. Step 2: Convert to fraction form
    15,017.19/20,722.90 = 8,302.41/x
  3. Step 3: Cross multiply
    15,017.19x = 20,722.90 × 8,302.41
  4. Step 4: Simplify right side
    15,017.19x = 172,050,012.19
  5. Step 5: Solve for x
    x = 172,050,012.19/15,017.19
  6. Step 6: Final answer
    x = 11,456.87

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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.