Home / 17,088.78-25,638.16-7,091.66

Finding the Fourth Proportional to 17,088.78, 25,638.16 and 7,091.66

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Solution

The fourth proportional to 17,088.78, 25,638.16 and 7,091.66 is: 10,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,088.78 : 25,638.16 = 7,091.66 : x
  2. Step 2: Convert to fraction form
    17,088.78/25,638.16 = 7,091.66/x
  3. Step 3: Cross multiply
    17,088.78x = 25,638.16 × 7,091.66
  4. Step 4: Simplify right side
    17,088.78x = 181,817,113.75
  5. Step 5: Solve for x
    x = 181,817,113.75/17,088.78
  6. Step 6: Final answer
    x = 10,639.56

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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.