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Finding the Fourth Proportional to 8,603.23, 11,870.65 and 5,623.44

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Solution

The fourth proportional to 8,603.23, 11,870.65 and 5,623.44 is: 7,759.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.23 : 11,870.65 = 5,623.44 : x
  2. Step 2: Convert to fraction form
    8,603.23/11,870.65 = 5,623.44/x
  3. Step 3: Cross multiply
    8,603.23x = 11,870.65 × 5,623.44
  4. Step 4: Simplify right side
    8,603.23x = 66,753,917.71
  5. Step 5: Solve for x
    x = 66,753,917.71/8,603.23
  6. Step 6: Final answer
    x = 7,759.17

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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.