Home / 18,688.97-28,034.22-8,703.02

Finding the Fourth Proportional to 18,688.97, 28,034.22 and 8,703.02

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Solution

The fourth proportional to 18,688.97, 28,034.22 and 8,703.02 is: 13,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.97 : 28,034.22 = 8,703.02 : x
  2. Step 2: Convert to fraction form
    18,688.97/28,034.22 = 8,703.02/x
  3. Step 3: Cross multiply
    18,688.97x = 28,034.22 × 8,703.02
  4. Step 4: Simplify right side
    18,688.97x = 243,982,377.34
  5. Step 5: Solve for x
    x = 243,982,377.34/18,688.97
  6. Step 6: Final answer
    x = 13,054.89

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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.