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Finding the Fourth Proportional to 13,653.30, 18,842.46 and 7,604.49

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Solution

The fourth proportional to 13,653.30, 18,842.46 and 7,604.49 is: 10,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.30 : 18,842.46 = 7,604.49 : x
  2. Step 2: Convert to fraction form
    13,653.30/18,842.46 = 7,604.49/x
  3. Step 3: Cross multiply
    13,653.30x = 18,842.46 × 7,604.49
  4. Step 4: Simplify right side
    13,653.30x = 143,287,298.65
  5. Step 5: Solve for x
    x = 143,287,298.65/13,653.30
  6. Step 6: Final answer
    x = 10,494.70

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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.