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Finding the Fourth Proportional to 8,663.81, 12,993.80 and 2,741.13

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Solution

The fourth proportional to 8,663.81, 12,993.80 and 2,741.13 is: 4,111.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.81 : 12,993.80 = 2,741.13 : x
  2. Step 2: Convert to fraction form
    8,663.81/12,993.80 = 2,741.13/x
  3. Step 3: Cross multiply
    8,663.81x = 12,993.80 × 2,741.13
  4. Step 4: Simplify right side
    8,663.81x = 35,617,681.29
  5. Step 5: Solve for x
    x = 35,617,681.29/8,663.81
  6. Step 6: Final answer
    x = 4,111.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.