Home / 15,339.71-21,168.32-8,625.62

Finding the Fourth Proportional to 15,339.71, 21,168.32 and 8,625.62

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Solution

The fourth proportional to 15,339.71, 21,168.32 and 8,625.62 is: 11,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.71 : 21,168.32 = 8,625.62 : x
  2. Step 2: Convert to fraction form
    15,339.71/21,168.32 = 8,625.62/x
  3. Step 3: Cross multiply
    15,339.71x = 21,168.32 × 8,625.62
  4. Step 4: Simplify right side
    15,339.71x = 182,589,735.39
  5. Step 5: Solve for x
    x = 182,589,735.39/15,339.71
  6. Step 6: Final answer
    x = 11,903.08

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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.