Home / 12,335.91-18,505.81-5,317.92

Finding the Fourth Proportional to 12,335.91, 18,505.81 and 5,317.92

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Solution

The fourth proportional to 12,335.91, 18,505.81 and 5,317.92 is: 7,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.91 : 18,505.81 = 5,317.92 : x
  2. Step 2: Convert to fraction form
    12,335.91/18,505.81 = 5,317.92/x
  3. Step 3: Cross multiply
    12,335.91x = 18,505.81 × 5,317.92
  4. Step 4: Simplify right side
    12,335.91x = 98,412,374.04
  5. Step 5: Solve for x
    x = 98,412,374.04/12,335.91
  6. Step 6: Final answer
    x = 7,977.71

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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.