Home / 12,268.06-16,928.40-7,231.12

Finding the Fourth Proportional to 12,268.06, 16,928.40 and 7,231.12

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Solution

The fourth proportional to 12,268.06, 16,928.40 and 7,231.12 is: 9,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.06 : 16,928.40 = 7,231.12 : x
  2. Step 2: Convert to fraction form
    12,268.06/16,928.40 = 7,231.12/x
  3. Step 3: Cross multiply
    12,268.06x = 16,928.40 × 7,231.12
  4. Step 4: Simplify right side
    12,268.06x = 122,411,291.81
  5. Step 5: Solve for x
    x = 122,411,291.81/12,268.06
  6. Step 6: Final answer
    x = 9,978.05

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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.