Home / 11,181.09-15,432.45-7,404.39

Finding the Fourth Proportional to 11,181.09, 15,432.45 and 7,404.39

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Solution

The fourth proportional to 11,181.09, 15,432.45 and 7,404.39 is: 10,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.09 : 15,432.45 = 7,404.39 : x
  2. Step 2: Convert to fraction form
    11,181.09/15,432.45 = 7,404.39/x
  3. Step 3: Cross multiply
    11,181.09x = 15,432.45 × 7,404.39
  4. Step 4: Simplify right side
    11,181.09x = 114,267,878.46
  5. Step 5: Solve for x
    x = 114,267,878.46/11,181.09
  6. Step 6: Final answer
    x = 10,219.74

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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.