Home / 18,857.96-28,287.02-5,710.45

Finding the Fourth Proportional to 18,857.96, 28,287.02 and 5,710.45

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Solution

The fourth proportional to 18,857.96, 28,287.02 and 5,710.45 is: 8,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.96 : 28,287.02 = 5,710.45 : x
  2. Step 2: Convert to fraction form
    18,857.96/28,287.02 = 5,710.45/x
  3. Step 3: Cross multiply
    18,857.96x = 28,287.02 × 5,710.45
  4. Step 4: Simplify right side
    18,857.96x = 161,531,443.37
  5. Step 5: Solve for x
    x = 161,531,443.37/18,857.96
  6. Step 6: Final answer
    x = 8,565.69

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Double scale
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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.