Home / 15,339.77-21,169.52-8,625.68

Finding the Fourth Proportional to 15,339.77, 21,169.52 and 8,625.68

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Solution

The fourth proportional to 15,339.77, 21,169.52 and 8,625.68 is: 11,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.77 : 21,169.52 = 8,625.68 : x
  2. Step 2: Convert to fraction form
    15,339.77/21,169.52 = 8,625.68/x
  3. Step 3: Cross multiply
    15,339.77x = 21,169.52 × 8,625.68
  4. Step 4: Simplify right side
    15,339.77x = 182,601,505.27
  5. Step 5: Solve for x
    x = 182,601,505.27/15,339.77
  6. Step 6: Final answer
    x = 11,903.80

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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.