Home / 11,119.86-15,340.25-6,401.41

Finding the Fourth Proportional to 11,119.86, 15,340.25 and 6,401.41

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Solution

The fourth proportional to 11,119.86, 15,340.25 and 6,401.41 is: 8,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.86 : 15,340.25 = 6,401.41 : x
  2. Step 2: Convert to fraction form
    11,119.86/15,340.25 = 6,401.41/x
  3. Step 3: Cross multiply
    11,119.86x = 15,340.25 × 6,401.41
  4. Step 4: Simplify right side
    11,119.86x = 98,199,207.41
  5. Step 5: Solve for x
    x = 98,199,207.41/11,119.86
  6. Step 6: Final answer
    x = 8,830.98

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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.