Home / 13,368.25-18,449.13-8,062.75

Finding the Fourth Proportional to 13,368.25, 18,449.13 and 8,062.75

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Solution

The fourth proportional to 13,368.25, 18,449.13 and 8,062.75 is: 11,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.25 : 18,449.13 = 8,062.75 : x
  2. Step 2: Convert to fraction form
    13,368.25/18,449.13 = 8,062.75/x
  3. Step 3: Cross multiply
    13,368.25x = 18,449.13 × 8,062.75
  4. Step 4: Simplify right side
    13,368.25x = 148,750,722.91
  5. Step 5: Solve for x
    x = 148,750,722.91/13,368.25
  6. Step 6: Final answer
    x = 11,127.16

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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.