Home / 13,305.72-18,362.01-7,337.61

Finding the Fourth Proportional to 13,305.72, 18,362.01 and 7,337.61

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Solution

The fourth proportional to 13,305.72, 18,362.01 and 7,337.61 is: 10,125.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.72 : 18,362.01 = 7,337.61 : x
  2. Step 2: Convert to fraction form
    13,305.72/18,362.01 = 7,337.61/x
  3. Step 3: Cross multiply
    13,305.72x = 18,362.01 × 7,337.61
  4. Step 4: Simplify right side
    13,305.72x = 134,733,268.20
  5. Step 5: Solve for x
    x = 134,733,268.20/13,305.72
  6. Step 6: Final answer
    x = 10,125.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.