Home / 9,415.40-14,124.40-3,177.20

Finding the Fourth Proportional to 9,415.40, 14,124.40 and 3,177.20

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Solution

The fourth proportional to 9,415.40, 14,124.40 and 3,177.20 is: 4,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.40 : 14,124.40 = 3,177.20 : x
  2. Step 2: Convert to fraction form
    9,415.40/14,124.40 = 3,177.20/x
  3. Step 3: Cross multiply
    9,415.40x = 14,124.40 × 3,177.20
  4. Step 4: Simplify right side
    9,415.40x = 44,876,043.68
  5. Step 5: Solve for x
    x = 44,876,043.68/9,415.40
  6. Step 6: Final answer
    x = 4,766.24

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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.