Home / 12,235.60-16,885.11-6,930.10

Finding the Fourth Proportional to 12,235.60, 16,885.11 and 6,930.10

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Solution

The fourth proportional to 12,235.60, 16,885.11 and 6,930.10 is: 9,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.60 : 16,885.11 = 6,930.10 : x
  2. Step 2: Convert to fraction form
    12,235.60/16,885.11 = 6,930.10/x
  3. Step 3: Cross multiply
    12,235.60x = 16,885.11 × 6,930.10
  4. Step 4: Simplify right side
    12,235.60x = 117,015,500.81
  5. Step 5: Solve for x
    x = 117,015,500.81/12,235.60
  6. Step 6: Final answer
    x = 9,563.53

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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.