Home / 18,862.42-28,273.92-10,530.22

Finding the Fourth Proportional to 18,862.42, 28,273.92 and 10,530.22

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Solution

The fourth proportional to 18,862.42, 28,273.92 and 10,530.22 is: 15,784.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.42 : 28,273.92 = 10,530.22 : x
  2. Step 2: Convert to fraction form
    18,862.42/28,273.92 = 10,530.22/x
  3. Step 3: Cross multiply
    18,862.42x = 28,273.92 × 10,530.22
  4. Step 4: Simplify right side
    18,862.42x = 297,730,597.86
  5. Step 5: Solve for x
    x = 297,730,597.86/18,862.42
  6. Step 6: Final answer
    x = 15,784.33

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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.