Home / 18,853.19-28,277.94-9,489.47

Finding the Fourth Proportional to 18,853.19, 28,277.94 and 9,489.47

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Solution

The fourth proportional to 18,853.19, 28,277.94 and 9,489.47 is: 14,233.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.19 : 28,277.94 = 9,489.47 : x
  2. Step 2: Convert to fraction form
    18,853.19/28,277.94 = 9,489.47/x
  3. Step 3: Cross multiply
    18,853.19x = 28,277.94 × 9,489.47
  4. Step 4: Simplify right side
    18,853.19x = 268,342,663.29
  5. Step 5: Solve for x
    x = 268,342,663.29/18,853.19
  6. Step 6: Final answer
    x = 14,233.28

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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.