Home / 18,853.47-28,270.51-9,973.57

Finding the Fourth Proportional to 18,853.47, 28,270.51 and 9,973.57

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Solution

The fourth proportional to 18,853.47, 28,270.51 and 9,973.57 is: 14,955.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.47 : 28,270.51 = 9,973.57 : x
  2. Step 2: Convert to fraction form
    18,853.47/28,270.51 = 9,973.57/x
  3. Step 3: Cross multiply
    18,853.47x = 28,270.51 × 9,973.57
  4. Step 4: Simplify right side
    18,853.47x = 281,957,910.42
  5. Step 5: Solve for x
    x = 281,957,910.42/18,853.47
  6. Step 6: Final answer
    x = 14,955.23

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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.