Home / 12,268.40-16,929.56-6,679.28

Finding the Fourth Proportional to 12,268.40, 16,929.56 and 6,679.28

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Solution

The fourth proportional to 12,268.40, 16,929.56 and 6,679.28 is: 9,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.40 : 16,929.56 = 6,679.28 : x
  2. Step 2: Convert to fraction form
    12,268.40/16,929.56 = 6,679.28/x
  3. Step 3: Cross multiply
    12,268.40x = 16,929.56 × 6,679.28
  4. Step 4: Simplify right side
    12,268.40x = 113,077,271.52
  5. Step 5: Solve for x
    x = 113,077,271.52/12,268.40
  6. Step 6: Final answer
    x = 9,216.95

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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.