Home / 18,740.68-28,111.02-7,652.59

Finding the Fourth Proportional to 18,740.68, 28,111.02 and 7,652.59

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Solution

The fourth proportional to 18,740.68, 28,111.02 and 7,652.59 is: 11,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.68 : 28,111.02 = 7,652.59 : x
  2. Step 2: Convert to fraction form
    18,740.68/28,111.02 = 7,652.59/x
  3. Step 3: Cross multiply
    18,740.68x = 28,111.02 × 7,652.59
  4. Step 4: Simplify right side
    18,740.68x = 215,122,040.26
  5. Step 5: Solve for x
    x = 215,122,040.26/18,740.68
  6. Step 6: Final answer
    x = 11,478.88

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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.