Home / 8,441.30-12,669.72-4,284.20

Finding the Fourth Proportional to 8,441.30, 12,669.72 and 4,284.20

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Solution

The fourth proportional to 8,441.30, 12,669.72 and 4,284.20 is: 6,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,441.30 : 12,669.72 = 4,284.20 : x
  2. Step 2: Convert to fraction form
    8,441.30/12,669.72 = 4,284.20/x
  3. Step 3: Cross multiply
    8,441.30x = 12,669.72 × 4,284.20
  4. Step 4: Simplify right side
    8,441.30x = 54,279,614.42
  5. Step 5: Solve for x
    x = 54,279,614.42/8,441.30
  6. Step 6: Final answer
    x = 6,430.24

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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.