Home / 18,853.66-28,272.21-9,487.81

Finding the Fourth Proportional to 18,853.66, 28,272.21 and 9,487.81

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Solution

The fourth proportional to 18,853.66, 28,272.21 and 9,487.81 is: 14,227.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.66 : 28,272.21 = 9,487.81 : x
  2. Step 2: Convert to fraction form
    18,853.66/28,272.21 = 9,487.81/x
  3. Step 3: Cross multiply
    18,853.66x = 28,272.21 × 9,487.81
  4. Step 4: Simplify right side
    18,853.66x = 268,241,356.76
  5. Step 5: Solve for x
    x = 268,241,356.76/18,853.66
  6. Step 6: Final answer
    x = 14,227.55

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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.