Home / 10,601.20-15,901.80-6,449.35

Finding the Fourth Proportional to 10,601.20, 15,901.80 and 6,449.35

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Solution

The fourth proportional to 10,601.20, 15,901.80 and 6,449.35 is: 9,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,601.20 : 15,901.80 = 6,449.35 : x
  2. Step 2: Convert to fraction form
    10,601.20/15,901.80 = 6,449.35/x
  3. Step 3: Cross multiply
    10,601.20x = 15,901.80 × 6,449.35
  4. Step 4: Simplify right side
    10,601.20x = 102,556,273.83
  5. Step 5: Solve for x
    x = 102,556,273.83/10,601.20
  6. Step 6: Final answer
    x = 9,674.03

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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.