Home / 15,540.36-21,447.25-9,490.27

Finding the Fourth Proportional to 15,540.36, 21,447.25 and 9,490.27

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Solution

The fourth proportional to 15,540.36, 21,447.25 and 9,490.27 is: 13,097.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.36 : 21,447.25 = 9,490.27 : x
  2. Step 2: Convert to fraction form
    15,540.36/21,447.25 = 9,490.27/x
  3. Step 3: Cross multiply
    15,540.36x = 21,447.25 × 9,490.27
  4. Step 4: Simplify right side
    15,540.36x = 203,540,038.57
  5. Step 5: Solve for x
    x = 203,540,038.57/15,540.36
  6. Step 6: Final answer
    x = 13,097.51

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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.