Home / 12,273.60-18,410.40-7,340.70

Finding the Fourth Proportional to 12,273.60, 18,410.40 and 7,340.70

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Solution

The fourth proportional to 12,273.60, 18,410.40 and 7,340.70 is: 11,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.60 : 18,410.40 = 7,340.70 : x
  2. Step 2: Convert to fraction form
    12,273.60/18,410.40 = 7,340.70/x
  3. Step 3: Cross multiply
    12,273.60x = 18,410.40 × 7,340.70
  4. Step 4: Simplify right side
    12,273.60x = 135,145,223.28
  5. Step 5: Solve for x
    x = 135,145,223.28/12,273.60
  6. Step 6: Final answer
    x = 11,011.05

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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.