Home / 12,307.87-18,459.82-4,408.92

Finding the Fourth Proportional to 12,307.87, 18,459.82 and 4,408.92

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Solution

The fourth proportional to 12,307.87, 18,459.82 and 4,408.92 is: 6,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.87 : 18,459.82 = 4,408.92 : x
  2. Step 2: Convert to fraction form
    12,307.87/18,459.82 = 4,408.92/x
  3. Step 3: Cross multiply
    12,307.87x = 18,459.82 × 4,408.92
  4. Step 4: Simplify right side
    12,307.87x = 81,387,869.59
  5. Step 5: Solve for x
    x = 81,387,869.59/12,307.87
  6. Step 6: Final answer
    x = 6,612.67

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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.