Home / 8,321.48-12,418.52-7,434.01

Finding the Fourth Proportional to 8,321.48, 12,418.52 and 7,434.01

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Solution

The fourth proportional to 8,321.48, 12,418.52 and 7,434.01 is: 11,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.48 : 12,418.52 = 7,434.01 : x
  2. Step 2: Convert to fraction form
    8,321.48/12,418.52 = 7,434.01/x
  3. Step 3: Cross multiply
    8,321.48x = 12,418.52 × 7,434.01
  4. Step 4: Simplify right side
    8,321.48x = 92,319,401.87
  5. Step 5: Solve for x
    x = 92,319,401.87/8,321.48
  6. Step 6: Final answer
    x = 11,094.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.