Home / 19,339.81-26,687.13-10,956.31

Finding the Fourth Proportional to 19,339.81, 26,687.13 and 10,956.31

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Solution

The fourth proportional to 19,339.81, 26,687.13 and 10,956.31 is: 15,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.81 : 26,687.13 = 10,956.31 : x
  2. Step 2: Convert to fraction form
    19,339.81/26,687.13 = 10,956.31/x
  3. Step 3: Cross multiply
    19,339.81x = 26,687.13 × 10,956.31
  4. Step 4: Simplify right side
    19,339.81x = 292,392,469.29
  5. Step 5: Solve for x
    x = 292,392,469.29/19,339.81
  6. Step 6: Final answer
    x = 15,118.68

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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.