Home / 8,619.68-12,927.02-3,937.20

Finding the Fourth Proportional to 8,619.68, 12,927.02 and 3,937.20

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Solution

The fourth proportional to 8,619.68, 12,927.02 and 3,937.20 is: 5,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.68 : 12,927.02 = 3,937.20 : x
  2. Step 2: Convert to fraction form
    8,619.68/12,927.02 = 3,937.20/x
  3. Step 3: Cross multiply
    8,619.68x = 12,927.02 × 3,937.20
  4. Step 4: Simplify right side
    8,619.68x = 50,896,243.46
  5. Step 5: Solve for x
    x = 50,896,243.46/8,619.68
  6. Step 6: Final answer
    x = 5,904.66

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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.