Home / 18,430.18-27,656.10-8,040.58

Finding the Fourth Proportional to 18,430.18, 27,656.10 and 8,040.58

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Solution

The fourth proportional to 18,430.18, 27,656.10 and 8,040.58 is: 12,065.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.18 : 27,656.10 = 8,040.58 : x
  2. Step 2: Convert to fraction form
    18,430.18/27,656.10 = 8,040.58/x
  3. Step 3: Cross multiply
    18,430.18x = 27,656.10 × 8,040.58
  4. Step 4: Simplify right side
    18,430.18x = 222,371,084.54
  5. Step 5: Solve for x
    x = 222,371,084.54/18,430.18
  6. Step 6: Final answer
    x = 12,065.59

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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.