Home / 19,021.41-26,258.69-12,658.61

Finding the Fourth Proportional to 19,021.41, 26,258.69 and 12,658.61

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Solution

The fourth proportional to 19,021.41, 26,258.69 and 12,658.61 is: 17,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.41 : 26,258.69 = 12,658.61 : x
  2. Step 2: Convert to fraction form
    19,021.41/26,258.69 = 12,658.61/x
  3. Step 3: Cross multiply
    19,021.41x = 26,258.69 × 12,658.61
  4. Step 4: Simplify right side
    19,021.41x = 332,398,613.11
  5. Step 5: Solve for x
    x = 332,398,613.11/19,021.41
  6. Step 6: Final answer
    x = 17,474.97

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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.