Home / 12,431.23-17,155.13-6,765.97

Finding the Fourth Proportional to 12,431.23, 17,155.13 and 6,765.97

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Solution

The fourth proportional to 12,431.23, 17,155.13 and 6,765.97 is: 9,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.23 : 17,155.13 = 6,765.97 : x
  2. Step 2: Convert to fraction form
    12,431.23/17,155.13 = 6,765.97/x
  3. Step 3: Cross multiply
    12,431.23x = 17,155.13 × 6,765.97
  4. Step 4: Simplify right side
    12,431.23x = 116,071,050.37
  5. Step 5: Solve for x
    x = 116,071,050.37/12,431.23
  6. Step 6: Final answer
    x = 9,337.05

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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.