Home / 15,326.52-21,146.89-8,949.50

Finding the Fourth Proportional to 15,326.52, 21,146.89 and 8,949.50

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Solution

The fourth proportional to 15,326.52, 21,146.89 and 8,949.50 is: 12,348.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.52 : 21,146.89 = 8,949.50 : x
  2. Step 2: Convert to fraction form
    15,326.52/21,146.89 = 8,949.50/x
  3. Step 3: Cross multiply
    15,326.52x = 21,146.89 × 8,949.50
  4. Step 4: Simplify right side
    15,326.52x = 189,254,092.06
  5. Step 5: Solve for x
    x = 189,254,092.06/15,326.52
  6. Step 6: Final answer
    x = 12,348.15

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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.