Home / 14,106.12-21,174.07-13,788.40

Finding the Fourth Proportional to 14,106.12, 21,174.07 and 13,788.40

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Solution

The fourth proportional to 14,106.12, 21,174.07 and 13,788.40 is: 20,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.12 : 21,174.07 = 13,788.40 : x
  2. Step 2: Convert to fraction form
    14,106.12/21,174.07 = 13,788.40/x
  3. Step 3: Cross multiply
    14,106.12x = 21,174.07 × 13,788.40
  4. Step 4: Simplify right side
    14,106.12x = 291,956,546.79
  5. Step 5: Solve for x
    x = 291,956,546.79/14,106.12
  6. Step 6: Final answer
    x = 20,697.15

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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.