Home / 15,017.14-20,722.52-8,302.10

Finding the Fourth Proportional to 15,017.14, 20,722.52 and 8,302.10

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Solution

The fourth proportional to 15,017.14, 20,722.52 and 8,302.10 is: 11,456.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.14 : 20,722.52 = 8,302.10 : x
  2. Step 2: Convert to fraction form
    15,017.14/20,722.52 = 8,302.10/x
  3. Step 3: Cross multiply
    15,017.14x = 20,722.52 × 8,302.10
  4. Step 4: Simplify right side
    15,017.14x = 172,040,433.29
  5. Step 5: Solve for x
    x = 172,040,433.29/15,017.14
  6. Step 6: Final answer
    x = 11,456.27

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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.