Home / 14,788.28-20,408.13-8,074.19

Finding the Fourth Proportional to 14,788.28, 20,408.13 and 8,074.19

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Solution

The fourth proportional to 14,788.28, 20,408.13 and 8,074.19 is: 11,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,788.28 : 20,408.13 = 8,074.19 : x
  2. Step 2: Convert to fraction form
    14,788.28/20,408.13 = 8,074.19/x
  3. Step 3: Cross multiply
    14,788.28x = 20,408.13 × 8,074.19
  4. Step 4: Simplify right side
    14,788.28x = 164,779,017.12
  5. Step 5: Solve for x
    x = 164,779,017.12/14,788.28
  6. Step 6: Final answer
    x = 11,142.54

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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.