Home / 10,209.07-15,314.16-3,190.05

Finding the Fourth Proportional to 10,209.07, 15,314.16 and 3,190.05

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Solution

The fourth proportional to 10,209.07, 15,314.16 and 3,190.05 is: 4,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.07 : 15,314.16 = 3,190.05 : x
  2. Step 2: Convert to fraction form
    10,209.07/15,314.16 = 3,190.05/x
  3. Step 3: Cross multiply
    10,209.07x = 15,314.16 × 3,190.05
  4. Step 4: Simplify right side
    10,209.07x = 48,852,948.07
  5. Step 5: Solve for x
    x = 48,852,948.07/10,209.07
  6. Step 6: Final answer
    x = 4,785.25

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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.