Home / 12,223.19-16,867.26-7,188.30

Finding the Fourth Proportional to 12,223.19, 16,867.26 and 7,188.30

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Solution

The fourth proportional to 12,223.19, 16,867.26 and 7,188.30 is: 9,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.19 : 16,867.26 = 7,188.30 : x
  2. Step 2: Convert to fraction form
    12,223.19/16,867.26 = 7,188.30/x
  3. Step 3: Cross multiply
    12,223.19x = 16,867.26 × 7,188.30
  4. Step 4: Simplify right side
    12,223.19x = 121,246,925.06
  5. Step 5: Solve for x
    x = 121,246,925.06/12,223.19
  6. Step 6: Final answer
    x = 9,919.42

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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.