Home / 11,529.78-15,913.17-9,041.46

Finding the Fourth Proportional to 11,529.78, 15,913.17 and 9,041.46

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Solution

The fourth proportional to 11,529.78, 15,913.17 and 9,041.46 is: 12,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.78 : 15,913.17 = 9,041.46 : x
  2. Step 2: Convert to fraction form
    11,529.78/15,913.17 = 9,041.46/x
  3. Step 3: Cross multiply
    11,529.78x = 15,913.17 × 9,041.46
  4. Step 4: Simplify right side
    11,529.78x = 143,878,290.03
  5. Step 5: Solve for x
    x = 143,878,290.03/11,529.78
  6. Step 6: Final answer
    x = 12,478.84

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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.