Home / 8,148.30-12,222.45-4,867.80

Finding the Fourth Proportional to 8,148.30, 12,222.45 and 4,867.80

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Solution

The fourth proportional to 8,148.30, 12,222.45 and 4,867.80 is: 7,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.30 : 12,222.45 = 4,867.80 : x
  2. Step 2: Convert to fraction form
    8,148.30/12,222.45 = 4,867.80/x
  3. Step 3: Cross multiply
    8,148.30x = 12,222.45 × 4,867.80
  4. Step 4: Simplify right side
    8,148.30x = 59,496,442.11
  5. Step 5: Solve for x
    x = 59,496,442.11/8,148.30
  6. Step 6: Final answer
    x = 7,301.70

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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.