Home / 8,521.08-11,759.34-5,164.48

Finding the Fourth Proportional to 8,521.08, 11,759.34 and 5,164.48

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Solution

The fourth proportional to 8,521.08, 11,759.34 and 5,164.48 is: 7,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.08 : 11,759.34 = 5,164.48 : x
  2. Step 2: Convert to fraction form
    8,521.08/11,759.34 = 5,164.48/x
  3. Step 3: Cross multiply
    8,521.08x = 11,759.34 × 5,164.48
  4. Step 4: Simplify right side
    8,521.08x = 60,730,876.24
  5. Step 5: Solve for x
    x = 60,730,876.24/8,521.08
  6. Step 6: Final answer
    x = 7,127.13

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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.