Home / 14,106.41-21,174.49-13,788.68

Finding the Fourth Proportional to 14,106.41, 21,174.49 and 13,788.68

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Solution

The fourth proportional to 14,106.41, 21,174.49 and 13,788.68 is: 20,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.41 : 21,174.49 = 13,788.68 : x
  2. Step 2: Convert to fraction form
    14,106.41/21,174.49 = 13,788.68/x
  3. Step 3: Cross multiply
    14,106.41x = 21,174.49 × 13,788.68
  4. Step 4: Simplify right side
    14,106.41x = 291,968,266.77
  5. Step 5: Solve for x
    x = 291,968,266.77/14,106.41
  6. Step 6: Final answer
    x = 20,697.57

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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.