Home / 10,617.64-15,930.30-3,692.20

Finding the Fourth Proportional to 10,617.64, 15,930.30 and 3,692.20

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Solution

The fourth proportional to 10,617.64, 15,930.30 and 3,692.20 is: 5,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.64 : 15,930.30 = 3,692.20 : x
  2. Step 2: Convert to fraction form
    10,617.64/15,930.30 = 3,692.20/x
  3. Step 3: Cross multiply
    10,617.64x = 15,930.30 × 3,692.20
  4. Step 4: Simplify right side
    10,617.64x = 58,817,853.66
  5. Step 5: Solve for x
    x = 58,817,853.66/10,617.64
  6. Step 6: Final answer
    x = 5,539.64

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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.