Home / 12,506.28-18,743.01-6,956.78

Finding the Fourth Proportional to 12,506.28, 18,743.01 and 6,956.78

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Solution

The fourth proportional to 12,506.28, 18,743.01 and 6,956.78 is: 10,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.28 : 18,743.01 = 6,956.78 : x
  2. Step 2: Convert to fraction form
    12,506.28/18,743.01 = 6,956.78/x
  3. Step 3: Cross multiply
    12,506.28x = 18,743.01 × 6,956.78
  4. Step 4: Simplify right side
    12,506.28x = 130,390,903.39
  5. Step 5: Solve for x
    x = 130,390,903.39/12,506.28
  6. Step 6: Final answer
    x = 10,426.03

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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.