Home / 12,268.02-16,930.28-6,891.40

Finding the Fourth Proportional to 12,268.02, 16,930.28 and 6,891.40

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Solution

The fourth proportional to 12,268.02, 16,930.28 and 6,891.40 is: 9,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.02 : 16,930.28 = 6,891.40 : x
  2. Step 2: Convert to fraction form
    12,268.02/16,930.28 = 6,891.40/x
  3. Step 3: Cross multiply
    12,268.02x = 16,930.28 × 6,891.40
  4. Step 4: Simplify right side
    12,268.02x = 116,673,331.59
  5. Step 5: Solve for x
    x = 116,673,331.59/12,268.02
  6. Step 6: Final answer
    x = 9,510.36

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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.