Home / 10,388.88-14,335.20-5,911.20

Finding the Fourth Proportional to 10,388.88, 14,335.20 and 5,911.20

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Solution

The fourth proportional to 10,388.88, 14,335.20 and 5,911.20 is: 8,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.88 : 14,335.20 = 5,911.20 : x
  2. Step 2: Convert to fraction form
    10,388.88/14,335.20 = 5,911.20/x
  3. Step 3: Cross multiply
    10,388.88x = 14,335.20 × 5,911.20
  4. Step 4: Simplify right side
    10,388.88x = 84,738,234.24
  5. Step 5: Solve for x
    x = 84,738,234.24/10,388.88
  6. Step 6: Final answer
    x = 8,156.63

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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.