Home / 9,279.21-12,803.91-5,299.48

Finding the Fourth Proportional to 9,279.21, 12,803.91 and 5,299.48

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Solution

The fourth proportional to 9,279.21, 12,803.91 and 5,299.48 is: 7,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.21 : 12,803.91 = 5,299.48 : x
  2. Step 2: Convert to fraction form
    9,279.21/12,803.91 = 5,299.48/x
  3. Step 3: Cross multiply
    9,279.21x = 12,803.91 × 5,299.48
  4. Step 4: Simplify right side
    9,279.21x = 67,854,000.95
  5. Step 5: Solve for x
    x = 67,854,000.95/9,279.21
  6. Step 6: Final answer
    x = 7,312.48

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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.