Home / 10,170.09-15,284.65-6,729.21

Finding the Fourth Proportional to 10,170.09, 15,284.65 and 6,729.21

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Solution

The fourth proportional to 10,170.09, 15,284.65 and 6,729.21 is: 10,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.09 : 15,284.65 = 6,729.21 : x
  2. Step 2: Convert to fraction form
    10,170.09/15,284.65 = 6,729.21/x
  3. Step 3: Cross multiply
    10,170.09x = 15,284.65 × 6,729.21
  4. Step 4: Simplify right side
    10,170.09x = 102,853,619.63
  5. Step 5: Solve for x
    x = 102,853,619.63/10,170.09
  6. Step 6: Final answer
    x = 10,113.34

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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.