Home / 8,948.40-13,426.56-3,109.20

Finding the Fourth Proportional to 8,948.40, 13,426.56 and 3,109.20

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Solution

The fourth proportional to 8,948.40, 13,426.56 and 3,109.20 is: 4,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.40 : 13,426.56 = 3,109.20 : x
  2. Step 2: Convert to fraction form
    8,948.40/13,426.56 = 3,109.20/x
  3. Step 3: Cross multiply
    8,948.40x = 13,426.56 × 3,109.20
  4. Step 4: Simplify right side
    8,948.40x = 41,745,860.35
  5. Step 5: Solve for x
    x = 41,745,860.35/8,948.40
  6. Step 6: Final answer
    x = 4,665.18

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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.