Home / 18,670.76-28,010.58-5,343.95

Finding the Fourth Proportional to 18,670.76, 28,010.58 and 5,343.95

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Solution

The fourth proportional to 18,670.76, 28,010.58 and 5,343.95 is: 8,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.76 : 28,010.58 = 5,343.95 : x
  2. Step 2: Convert to fraction form
    18,670.76/28,010.58 = 5,343.95/x
  3. Step 3: Cross multiply
    18,670.76x = 28,010.58 × 5,343.95
  4. Step 4: Simplify right side
    18,670.76x = 149,687,138.99
  5. Step 5: Solve for x
    x = 149,687,138.99/18,670.76
  6. Step 6: Final answer
    x = 8,017.20

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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.