Home / 10,385.20-15,577.80-4,836.70

Finding the Fourth Proportional to 10,385.20, 15,577.80 and 4,836.70

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Solution

The fourth proportional to 10,385.20, 15,577.80 and 4,836.70 is: 7,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.20 : 15,577.80 = 4,836.70 : x
  2. Step 2: Convert to fraction form
    10,385.20/15,577.80 = 4,836.70/x
  3. Step 3: Cross multiply
    10,385.20x = 15,577.80 × 4,836.70
  4. Step 4: Simplify right side
    10,385.20x = 75,345,145.26
  5. Step 5: Solve for x
    x = 75,345,145.26/10,385.20
  6. Step 6: Final answer
    x = 7,255.05

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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.