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Finding the Fourth Proportional to 10,755.99, 14,839.56 and 6,720.08

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Solution

The fourth proportional to 10,755.99, 14,839.56 and 6,720.08 is: 9,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,755.99 : 14,839.56 = 6,720.08 : x
  2. Step 2: Convert to fraction form
    10,755.99/14,839.56 = 6,720.08/x
  3. Step 3: Cross multiply
    10,755.99x = 14,839.56 × 6,720.08
  4. Step 4: Simplify right side
    10,755.99x = 99,722,956.17
  5. Step 5: Solve for x
    x = 99,722,956.17/10,755.99
  6. Step 6: Final answer
    x = 9,271.39

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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.