Home / 18,857.67-28,291.76-5,710.15

Finding the Fourth Proportional to 18,857.67, 28,291.76 and 5,710.15

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Solution

The fourth proportional to 18,857.67, 28,291.76 and 5,710.15 is: 8,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.67 : 28,291.76 = 5,710.15 : x
  2. Step 2: Convert to fraction form
    18,857.67/28,291.76 = 5,710.15/x
  3. Step 3: Cross multiply
    18,857.67x = 28,291.76 × 5,710.15
  4. Step 4: Simplify right side
    18,857.67x = 161,550,193.36
  5. Step 5: Solve for x
    x = 161,550,193.36/18,857.67
  6. Step 6: Final answer
    x = 8,566.82

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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.