Home / 18,758.82-28,132.56-6,275.64

Finding the Fourth Proportional to 18,758.82, 28,132.56 and 6,275.64

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Solution

The fourth proportional to 18,758.82, 28,132.56 and 6,275.64 is: 9,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.82 : 28,132.56 = 6,275.64 : x
  2. Step 2: Convert to fraction form
    18,758.82/28,132.56 = 6,275.64/x
  3. Step 3: Cross multiply
    18,758.82x = 28,132.56 × 6,275.64
  4. Step 4: Simplify right side
    18,758.82x = 176,549,818.84
  5. Step 5: Solve for x
    x = 176,549,818.84/18,758.82
  6. Step 6: Final answer
    x = 9,411.56

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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.