Home / 10,209.16-15,314.13-2,814.19

Finding the Fourth Proportional to 10,209.16, 15,314.13 and 2,814.19

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Solution

The fourth proportional to 10,209.16, 15,314.13 and 2,814.19 is: 4,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.16 : 15,314.13 = 2,814.19 : x
  2. Step 2: Convert to fraction form
    10,209.16/15,314.13 = 2,814.19/x
  3. Step 3: Cross multiply
    10,209.16x = 15,314.13 × 2,814.19
  4. Step 4: Simplify right side
    10,209.16x = 43,096,919.36
  5. Step 5: Solve for x
    x = 43,096,919.36/10,209.16
  6. Step 6: Final answer
    x = 4,221.40

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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.