Home / 18,888.44-28,335.60-5,739.68

Finding the Fourth Proportional to 18,888.44, 28,335.60 and 5,739.68

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Solution

The fourth proportional to 18,888.44, 28,335.60 and 5,739.68 is: 8,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.44 : 28,335.60 = 5,739.68 : x
  2. Step 2: Convert to fraction form
    18,888.44/28,335.60 = 5,739.68/x
  3. Step 3: Cross multiply
    18,888.44x = 28,335.60 × 5,739.68
  4. Step 4: Simplify right side
    18,888.44x = 162,637,276.61
  5. Step 5: Solve for x
    x = 162,637,276.61/18,888.44
  6. Step 6: Final answer
    x = 8,610.41

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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.