Home / 13,275.30-18,327.48-8,805.18

Finding the Fourth Proportional to 13,275.30, 18,327.48 and 8,805.18

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Solution

The fourth proportional to 13,275.30, 18,327.48 and 8,805.18 is: 12,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.30 : 18,327.48 = 8,805.18 : x
  2. Step 2: Convert to fraction form
    13,275.30/18,327.48 = 8,805.18/x
  3. Step 3: Cross multiply
    13,275.30x = 18,327.48 × 8,805.18
  4. Step 4: Simplify right side
    13,275.30x = 161,376,760.35
  5. Step 5: Solve for x
    x = 161,376,760.35/13,275.30
  6. Step 6: Final answer
    x = 12,156.17

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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.