Home / 19,182.69-26,480.30-12,898.71

Finding the Fourth Proportional to 19,182.69, 26,480.30 and 12,898.71

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Solution

The fourth proportional to 19,182.69, 26,480.30 and 12,898.71 is: 17,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.69 : 26,480.30 = 12,898.71 : x
  2. Step 2: Convert to fraction form
    19,182.69/26,480.30 = 12,898.71/x
  3. Step 3: Cross multiply
    19,182.69x = 26,480.30 × 12,898.71
  4. Step 4: Simplify right side
    19,182.69x = 341,561,645.92
  5. Step 5: Solve for x
    x = 341,561,645.92/19,182.69
  6. Step 6: Final answer
    x = 17,805.72

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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.