Home / 13,248.75-18,275.66-8,272.11

Finding the Fourth Proportional to 13,248.75, 18,275.66 and 8,272.11

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Solution

The fourth proportional to 13,248.75, 18,275.66 and 8,272.11 is: 11,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.75 : 18,275.66 = 8,272.11 : x
  2. Step 2: Convert to fraction form
    13,248.75/18,275.66 = 8,272.11/x
  3. Step 3: Cross multiply
    13,248.75x = 18,275.66 × 8,272.11
  4. Step 4: Simplify right side
    13,248.75x = 151,178,137.10
  5. Step 5: Solve for x
    x = 151,178,137.10/13,248.75
  6. Step 6: Final answer
    x = 11,410.75

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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.