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Finding the Fourth Proportional to 9,910.56, 13,678.50 and 6,553.56

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Solution

The fourth proportional to 9,910.56, 13,678.50 and 6,553.56 is: 9,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.56 : 13,678.50 = 6,553.56 : x
  2. Step 2: Convert to fraction form
    9,910.56/13,678.50 = 6,553.56/x
  3. Step 3: Cross multiply
    9,910.56x = 13,678.50 × 6,553.56
  4. Step 4: Simplify right side
    9,910.56x = 89,642,870.46
  5. Step 5: Solve for x
    x = 89,642,870.46/9,910.56
  6. Step 6: Final answer
    x = 9,045.19

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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.