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Finding the Fourth Proportional to 19,413, 26,789.96 and 10,581

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Solution

The fourth proportional to 19,413, 26,789.96 and 10,581 is: 14,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413 : 26,789.96 = 10,581 : x
  2. Step 2: Convert to fraction form
    19,413/26,789.96 = 10,581/x
  3. Step 3: Cross multiply
    19,413x = 26,789.96 × 10,581
  4. Step 4: Simplify right side
    19,413x = 283,464,566.76
  5. Step 5: Solve for x
    x = 283,464,566.76/19,413
  6. Step 6: Final answer
    x = 14,601.79

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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.