Home / 10,235.80-15,344.70-6,938.20

Finding the Fourth Proportional to 10,235.80, 15,344.70 and 6,938.20

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Solution

The fourth proportional to 10,235.80, 15,344.70 and 6,938.20 is: 10,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.80 : 15,344.70 = 6,938.20 : x
  2. Step 2: Convert to fraction form
    10,235.80/15,344.70 = 6,938.20/x
  3. Step 3: Cross multiply
    10,235.80x = 15,344.70 × 6,938.20
  4. Step 4: Simplify right side
    10,235.80x = 106,464,597.54
  5. Step 5: Solve for x
    x = 106,464,597.54/10,235.80
  6. Step 6: Final answer
    x = 10,401.20

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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.