Home / 8,389.71-12,577.28-4,226.21

Finding the Fourth Proportional to 8,389.71, 12,577.28 and 4,226.21

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Solution

The fourth proportional to 8,389.71, 12,577.28 and 4,226.21 is: 6,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.71 : 12,577.28 = 4,226.21 : x
  2. Step 2: Convert to fraction form
    8,389.71/12,577.28 = 4,226.21/x
  3. Step 3: Cross multiply
    8,389.71x = 12,577.28 × 4,226.21
  4. Step 4: Simplify right side
    8,389.71x = 53,154,189.66
  5. Step 5: Solve for x
    x = 53,154,189.66/8,389.71
  6. Step 6: Final answer
    x = 6,335.64

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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.