Home / 12,258.75-16,917.08-6,669.79

Finding the Fourth Proportional to 12,258.75, 16,917.08 and 6,669.79

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Solution

The fourth proportional to 12,258.75, 16,917.08 and 6,669.79 is: 9,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.75 : 16,917.08 = 6,669.79 : x
  2. Step 2: Convert to fraction form
    12,258.75/16,917.08 = 6,669.79/x
  3. Step 3: Cross multiply
    12,258.75x = 16,917.08 × 6,669.79
  4. Step 4: Simplify right side
    12,258.75x = 112,833,337.66
  5. Step 5: Solve for x
    x = 112,833,337.66/12,258.75
  6. Step 6: Final answer
    x = 9,204.31

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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.