Home / 8,281.12-11,427.90-4,744.30

Finding the Fourth Proportional to 8,281.12, 11,427.90 and 4,744.30

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Solution

The fourth proportional to 8,281.12, 11,427.90 and 4,744.30 is: 6,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.12 : 11,427.90 = 4,744.30 : x
  2. Step 2: Convert to fraction form
    8,281.12/11,427.90 = 4,744.30/x
  3. Step 3: Cross multiply
    8,281.12x = 11,427.90 × 4,744.30
  4. Step 4: Simplify right side
    8,281.12x = 54,217,385.97
  5. Step 5: Solve for x
    x = 54,217,385.97/8,281.12
  6. Step 6: Final answer
    x = 6,547.11

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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.