Home / 12,135.66-16,746.84-6,758.12

Finding the Fourth Proportional to 12,135.66, 16,746.84 and 6,758.12

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Solution

The fourth proportional to 12,135.66, 16,746.84 and 6,758.12 is: 9,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.66 : 16,746.84 = 6,758.12 : x
  2. Step 2: Convert to fraction form
    12,135.66/16,746.84 = 6,758.12/x
  3. Step 3: Cross multiply
    12,135.66x = 16,746.84 × 6,758.12
  4. Step 4: Simplify right side
    12,135.66x = 113,177,070.61
  5. Step 5: Solve for x
    x = 113,177,070.61/12,135.66
  6. Step 6: Final answer
    x = 9,325.99

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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.