Home / 13,981.35-20,972.03-11,510.98

Finding the Fourth Proportional to 13,981.35, 20,972.03 and 11,510.98

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Solution

The fourth proportional to 13,981.35, 20,972.03 and 11,510.98 is: 17,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.35 : 20,972.03 = 11,510.98 : x
  2. Step 2: Convert to fraction form
    13,981.35/20,972.03 = 11,510.98/x
  3. Step 3: Cross multiply
    13,981.35x = 20,972.03 × 11,510.98
  4. Step 4: Simplify right side
    13,981.35x = 241,408,637.93
  5. Step 5: Solve for x
    x = 241,408,637.93/13,981.35
  6. Step 6: Final answer
    x = 17,266.47

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Similar ratio
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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.