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Finding the Fourth Proportional to 13,812.61, 19,068.61 and 10,739.65

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Solution

The fourth proportional to 13,812.61, 19,068.61 and 10,739.65 is: 14,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.61 : 19,068.61 = 10,739.65 : x
  2. Step 2: Convert to fraction form
    13,812.61/19,068.61 = 10,739.65/x
  3. Step 3: Cross multiply
    13,812.61x = 19,068.61 × 10,739.65
  4. Step 4: Simplify right side
    13,812.61x = 204,790,197.39
  5. Step 5: Solve for x
    x = 204,790,197.39/13,812.61
  6. Step 6: Final answer
    x = 14,826.32

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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.