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Finding the Fourth Proportional to 11,643.12, 16,065 and 7,450.56

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Solution

The fourth proportional to 11,643.12, 16,065 and 7,450.56 is: 10,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.12 : 16,065 = 7,450.56 : x
  2. Step 2: Convert to fraction form
    11,643.12/16,065 = 7,450.56/x
  3. Step 3: Cross multiply
    11,643.12x = 16,065 × 7,450.56
  4. Step 4: Simplify right side
    11,643.12x = 119,693,246.40
  5. Step 5: Solve for x
    x = 119,693,246.40/11,643.12
  6. Step 6: Final answer
    x = 10,280.17

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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.