Home / 10,150.40-15,225.60-6,651.20

Finding the Fourth Proportional to 10,150.40, 15,225.60 and 6,651.20

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Solution

The fourth proportional to 10,150.40, 15,225.60 and 6,651.20 is: 9,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,150.40 : 15,225.60 = 6,651.20 : x
  2. Step 2: Convert to fraction form
    10,150.40/15,225.60 = 6,651.20/x
  3. Step 3: Cross multiply
    10,150.40x = 15,225.60 × 6,651.20
  4. Step 4: Simplify right side
    10,150.40x = 101,268,510.72
  5. Step 5: Solve for x
    x = 101,268,510.72/10,150.40
  6. Step 6: Final answer
    x = 9,976.80

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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.