Home / 12,631.59-17,431.32-7,326.90

Finding the Fourth Proportional to 12,631.59, 17,431.32 and 7,326.90

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Solution

The fourth proportional to 12,631.59, 17,431.32 and 7,326.90 is: 10,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.59 : 17,431.32 = 7,326.90 : x
  2. Step 2: Convert to fraction form
    12,631.59/17,431.32 = 7,326.90/x
  3. Step 3: Cross multiply
    12,631.59x = 17,431.32 × 7,326.90
  4. Step 4: Simplify right side
    12,631.59x = 127,717,538.51
  5. Step 5: Solve for x
    x = 127,717,538.51/12,631.59
  6. Step 6: Final answer
    x = 10,110.96

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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.