Home / 18,983.16-28,457.46-7,882.92

Finding the Fourth Proportional to 18,983.16, 28,457.46 and 7,882.92

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Solution

The fourth proportional to 18,983.16, 28,457.46 and 7,882.92 is: 11,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.16 : 28,457.46 = 7,882.92 : x
  2. Step 2: Convert to fraction form
    18,983.16/28,457.46 = 7,882.92/x
  3. Step 3: Cross multiply
    18,983.16x = 28,457.46 × 7,882.92
  4. Step 4: Simplify right side
    18,983.16x = 224,327,880.58
  5. Step 5: Solve for x
    x = 224,327,880.58/18,983.16
  6. Step 6: Final answer
    x = 11,817.20

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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.