Home / 15,017.37-20,722.28-8,301.30

Finding the Fourth Proportional to 15,017.37, 20,722.28 and 8,301.30

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Solution

The fourth proportional to 15,017.37, 20,722.28 and 8,301.30 is: 11,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.37 : 20,722.28 = 8,301.30 : x
  2. Step 2: Convert to fraction form
    15,017.37/20,722.28 = 8,301.30/x
  3. Step 3: Cross multiply
    15,017.37x = 20,722.28 × 8,301.30
  4. Step 4: Simplify right side
    15,017.37x = 172,021,821.46
  5. Step 5: Solve for x
    x = 172,021,821.46/15,017.37
  6. Step 6: Final answer
    x = 11,454.86

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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.