Home / 11,329.60-15,649.80-9,447.34

Finding the Fourth Proportional to 11,329.60, 15,649.80 and 9,447.34

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Solution

The fourth proportional to 11,329.60, 15,649.80 and 9,447.34 is: 13,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.60 : 15,649.80 = 9,447.34 : x
  2. Step 2: Convert to fraction form
    11,329.60/15,649.80 = 9,447.34/x
  3. Step 3: Cross multiply
    11,329.60x = 15,649.80 × 9,447.34
  4. Step 4: Simplify right side
    11,329.60x = 147,848,981.53
  5. Step 5: Solve for x
    x = 147,848,981.53/11,329.60
  6. Step 6: Final answer
    x = 13,049.80

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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.