Home / 11,603.31-17,399.11-5,680.65

Finding the Fourth Proportional to 11,603.31, 17,399.11 and 5,680.65

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Solution

The fourth proportional to 11,603.31, 17,399.11 and 5,680.65 is: 8,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.31 : 17,399.11 = 5,680.65 : x
  2. Step 2: Convert to fraction form
    11,603.31/17,399.11 = 5,680.65/x
  3. Step 3: Cross multiply
    11,603.31x = 17,399.11 × 5,680.65
  4. Step 4: Simplify right side
    11,603.31x = 98,838,254.22
  5. Step 5: Solve for x
    x = 98,838,254.22/11,603.31
  6. Step 6: Final answer
    x = 8,518.11

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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.