Home / 15,308.15-21,125.22-8,934.26

Finding the Fourth Proportional to 15,308.15, 21,125.22 and 8,934.26

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Solution

The fourth proportional to 15,308.15, 21,125.22 and 8,934.26 is: 12,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.15 : 21,125.22 = 8,934.26 : x
  2. Step 2: Convert to fraction form
    15,308.15/21,125.22 = 8,934.26/x
  3. Step 3: Cross multiply
    15,308.15x = 21,125.22 × 8,934.26
  4. Step 4: Simplify right side
    15,308.15x = 188,738,102.41
  5. Step 5: Solve for x
    x = 188,738,102.41/15,308.15
  6. Step 6: Final answer
    x = 12,329.26

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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.