Home / 14,217.28-21,297.90-13,408.06

Finding the Fourth Proportional to 14,217.28, 21,297.90 and 13,408.06

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Solution

The fourth proportional to 14,217.28, 21,297.90 and 13,408.06 is: 20,085.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.28 : 21,297.90 = 13,408.06 : x
  2. Step 2: Convert to fraction form
    14,217.28/21,297.90 = 13,408.06/x
  3. Step 3: Cross multiply
    14,217.28x = 21,297.90 × 13,408.06
  4. Step 4: Simplify right side
    14,217.28x = 285,563,521.07
  5. Step 5: Solve for x
    x = 285,563,521.07/14,217.28
  6. Step 6: Final answer
    x = 20,085.66

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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.