Home / 9,259.20-12,778.02-5,279.67

Finding the Fourth Proportional to 9,259.20, 12,778.02 and 5,279.67

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Solution

The fourth proportional to 9,259.20, 12,778.02 and 5,279.67 is: 7,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,259.20 : 12,778.02 = 5,279.67 : x
  2. Step 2: Convert to fraction form
    9,259.20/12,778.02 = 5,279.67/x
  3. Step 3: Cross multiply
    9,259.20x = 12,778.02 × 5,279.67
  4. Step 4: Simplify right side
    9,259.20x = 67,463,728.85
  5. Step 5: Solve for x
    x = 67,463,728.85/9,259.20
  6. Step 6: Final answer
    x = 7,286.13

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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.