Home / 18,711.68-28,066.46-11,314.16

Finding the Fourth Proportional to 18,711.68, 28,066.46 and 11,314.16

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Solution

The fourth proportional to 18,711.68, 28,066.46 and 11,314.16 is: 16,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.68 : 28,066.46 = 11,314.16 : x
  2. Step 2: Convert to fraction form
    18,711.68/28,066.46 = 11,314.16/x
  3. Step 3: Cross multiply
    18,711.68x = 28,066.46 × 11,314.16
  4. Step 4: Simplify right side
    18,711.68x = 317,548,222.17
  5. Step 5: Solve for x
    x = 317,548,222.17/18,711.68
  6. Step 6: Final answer
    x = 16,970.59

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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.