Home / 10,317.10-15,508.05-10,122.70

Finding the Fourth Proportional to 10,317.10, 15,508.05 and 10,122.70

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Solution

The fourth proportional to 10,317.10, 15,508.05 and 10,122.70 is: 15,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317.10 : 15,508.05 = 10,122.70 : x
  2. Step 2: Convert to fraction form
    10,317.10/15,508.05 = 10,122.70/x
  3. Step 3: Cross multiply
    10,317.10x = 15,508.05 × 10,122.70
  4. Step 4: Simplify right side
    10,317.10x = 156,983,337.74
  5. Step 5: Solve for x
    x = 156,983,337.74/10,317.10
  6. Step 6: Final answer
    x = 15,215.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.