Home / 12,258.72-16,917.12-6,669.84

Finding the Fourth Proportional to 12,258.72, 16,917.12 and 6,669.84

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Solution

The fourth proportional to 12,258.72, 16,917.12 and 6,669.84 is: 9,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.72 : 16,917.12 = 6,669.84 : x
  2. Step 2: Convert to fraction form
    12,258.72/16,917.12 = 6,669.84/x
  3. Step 3: Cross multiply
    12,258.72x = 16,917.12 × 6,669.84
  4. Step 4: Simplify right side
    12,258.72x = 112,834,483.66
  5. Step 5: Solve for x
    x = 112,834,483.66/12,258.72
  6. Step 6: Final answer
    x = 9,204.43

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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.