Home / 10,346.81-15,520.19-3,770.30

Finding the Fourth Proportional to 10,346.81, 15,520.19 and 3,770.30

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Solution

The fourth proportional to 10,346.81, 15,520.19 and 3,770.30 is: 5,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,346.81 : 15,520.19 = 3,770.30 : x
  2. Step 2: Convert to fraction form
    10,346.81/15,520.19 = 3,770.30/x
  3. Step 3: Cross multiply
    10,346.81x = 15,520.19 × 3,770.30
  4. Step 4: Simplify right side
    10,346.81x = 58,515,792.31
  5. Step 5: Solve for x
    x = 58,515,792.31/10,346.81
  6. Step 6: Final answer
    x = 5,655.45

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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.