Home / 14,955.30-20,639.48-8,242.13

Finding the Fourth Proportional to 14,955.30, 20,639.48 and 8,242.13

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Solution

The fourth proportional to 14,955.30, 20,639.48 and 8,242.13 is: 11,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.30 : 20,639.48 = 8,242.13 : x
  2. Step 2: Convert to fraction form
    14,955.30/20,639.48 = 8,242.13/x
  3. Step 3: Cross multiply
    14,955.30x = 20,639.48 × 8,242.13
  4. Step 4: Simplify right side
    14,955.30x = 170,113,287.68
  5. Step 5: Solve for x
    x = 170,113,287.68/14,955.30
  6. Step 6: Final answer
    x = 11,374.78

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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.