Home / 10,154.74-15,238.61-4,311.35

Finding the Fourth Proportional to 10,154.74, 15,238.61 and 4,311.35

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Solution

The fourth proportional to 10,154.74, 15,238.61 and 4,311.35 is: 6,469.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.74 : 15,238.61 = 4,311.35 : x
  2. Step 2: Convert to fraction form
    10,154.74/15,238.61 = 4,311.35/x
  3. Step 3: Cross multiply
    10,154.74x = 15,238.61 × 4,311.35
  4. Step 4: Simplify right side
    10,154.74x = 65,698,987.52
  5. Step 5: Solve for x
    x = 65,698,987.52/10,154.74
  6. Step 6: Final answer
    x = 6,469.78

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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.