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Finding the Fourth Proportional to 8,436.51, 12,640.93 and 5,959.22

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Solution

The fourth proportional to 8,436.51, 12,640.93 and 5,959.22 is: 8,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.51 : 12,640.93 = 5,959.22 : x
  2. Step 2: Convert to fraction form
    8,436.51/12,640.93 = 5,959.22/x
  3. Step 3: Cross multiply
    8,436.51x = 12,640.93 × 5,959.22
  4. Step 4: Simplify right side
    8,436.51x = 75,330,053.08
  5. Step 5: Solve for x
    x = 75,330,053.08/8,436.51
  6. Step 6: Final answer
    x = 8,929.05

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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.