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Finding the Fourth Proportional to 10,803.60, 14,908.78 and 6,087.80

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Solution

The fourth proportional to 10,803.60, 14,908.78 and 6,087.80 is: 8,401.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.60 : 14,908.78 = 6,087.80 : x
  2. Step 2: Convert to fraction form
    10,803.60/14,908.78 = 6,087.80/x
  3. Step 3: Cross multiply
    10,803.60x = 14,908.78 × 6,087.80
  4. Step 4: Simplify right side
    10,803.60x = 90,761,670.88
  5. Step 5: Solve for x
    x = 90,761,670.88/10,803.60
  6. Step 6: Final answer
    x = 8,401.06

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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.