Home / 19,372.05-26,729.28-12,667.53

Finding the Fourth Proportional to 19,372.05, 26,729.28 and 12,667.53

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Solution

The fourth proportional to 19,372.05, 26,729.28 and 12,667.53 is: 17,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.05 : 26,729.28 = 12,667.53 : x
  2. Step 2: Convert to fraction form
    19,372.05/26,729.28 = 12,667.53/x
  3. Step 3: Cross multiply
    19,372.05x = 26,729.28 × 12,667.53
  4. Step 4: Simplify right side
    19,372.05x = 338,593,956.28
  5. Step 5: Solve for x
    x = 338,593,956.28/19,372.05
  6. Step 6: Final answer
    x = 17,478.48

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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.