Home / 12,258.12-16,915.35-6,953.79

Finding the Fourth Proportional to 12,258.12, 16,915.35 and 6,953.79

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Solution

The fourth proportional to 12,258.12, 16,915.35 and 6,953.79 is: 9,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.12 : 16,915.35 = 6,953.79 : x
  2. Step 2: Convert to fraction form
    12,258.12/16,915.35 = 6,953.79/x
  3. Step 3: Cross multiply
    12,258.12x = 16,915.35 × 6,953.79
  4. Step 4: Simplify right side
    12,258.12x = 117,625,791.68
  5. Step 5: Solve for x
    x = 117,625,791.68/12,258.12
  6. Step 6: Final answer
    x = 9,595.74

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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.