Home / 15,365.34-21,204.38-8,995.91

Finding the Fourth Proportional to 15,365.34, 21,204.38 and 8,995.91

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Solution

The fourth proportional to 15,365.34, 21,204.38 and 8,995.91 is: 12,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.34 : 21,204.38 = 8,995.91 : x
  2. Step 2: Convert to fraction form
    15,365.34/21,204.38 = 8,995.91/x
  3. Step 3: Cross multiply
    15,365.34x = 21,204.38 × 8,995.91
  4. Step 4: Simplify right side
    15,365.34x = 190,752,610.55
  5. Step 5: Solve for x
    x = 190,752,610.55/15,365.34
  6. Step 6: Final answer
    x = 12,414.47

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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.