Home / 12,260.72-18,390.65-7,297.13

Finding the Fourth Proportional to 12,260.72, 18,390.65 and 7,297.13

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Solution

The fourth proportional to 12,260.72, 18,390.65 and 7,297.13 is: 10,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.72 : 18,390.65 = 7,297.13 : x
  2. Step 2: Convert to fraction form
    12,260.72/18,390.65 = 7,297.13/x
  3. Step 3: Cross multiply
    12,260.72x = 18,390.65 × 7,297.13
  4. Step 4: Simplify right side
    12,260.72x = 134,198,835.40
  5. Step 5: Solve for x
    x = 134,198,835.40/12,260.72
  6. Step 6: Final answer
    x = 10,945.43

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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.