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Finding the Fourth Proportional to 9,869.00, 13,617.64 and 5,620.14

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Solution

The fourth proportional to 9,869.00, 13,617.64 and 5,620.14 is: 7,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.00 : 13,617.64 = 5,620.14 : x
  2. Step 2: Convert to fraction form
    9,869.00/13,617.64 = 5,620.14/x
  3. Step 3: Cross multiply
    9,869.00x = 13,617.64 × 5,620.14
  4. Step 4: Simplify right side
    9,869.00x = 76,533,104.40
  5. Step 5: Solve for x
    x = 76,533,104.40/9,869.00
  6. Step 6: Final answer
    x = 7,754.90

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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.