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Finding the Fourth Proportional to 8,527.68, 12,790.64 and 2,681.08

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Solution

The fourth proportional to 8,527.68, 12,790.64 and 2,681.08 is: 4,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.68 : 12,790.64 = 2,681.08 : x
  2. Step 2: Convert to fraction form
    8,527.68/12,790.64 = 2,681.08/x
  3. Step 3: Cross multiply
    8,527.68x = 12,790.64 × 2,681.08
  4. Step 4: Simplify right side
    8,527.68x = 34,292,729.09
  5. Step 5: Solve for x
    x = 34,292,729.09/8,527.68
  6. Step 6: Final answer
    x = 4,021.34

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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.