Home / 14,788.95-20,408.63-8,074.47

Finding the Fourth Proportional to 14,788.95, 20,408.63 and 8,074.47

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Solution

The fourth proportional to 14,788.95, 20,408.63 and 8,074.47 is: 11,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,788.95 : 20,408.63 = 8,074.47 : x
  2. Step 2: Convert to fraction form
    14,788.95/20,408.63 = 8,074.47/x
  3. Step 3: Cross multiply
    14,788.95x = 20,408.63 × 8,074.47
  4. Step 4: Simplify right side
    14,788.95x = 164,788,830.30
  5. Step 5: Solve for x
    x = 164,788,830.30/14,788.95
  6. Step 6: Final answer
    x = 11,142.70

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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.