Home / 10,199.40-15,279.60-6,896.28

Finding the Fourth Proportional to 10,199.40, 15,279.60 and 6,896.28

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Solution

The fourth proportional to 10,199.40, 15,279.60 and 6,896.28 is: 10,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199.40 : 15,279.60 = 6,896.28 : x
  2. Step 2: Convert to fraction form
    10,199.40/15,279.60 = 6,896.28/x
  3. Step 3: Cross multiply
    10,199.40x = 15,279.60 × 6,896.28
  4. Step 4: Simplify right side
    10,199.40x = 105,372,399.89
  5. Step 5: Solve for x
    x = 105,372,399.89/10,199.40
  6. Step 6: Final answer
    x = 10,331.24

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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.