Home / 19,861.40-27,407.07-10,908.68

Finding the Fourth Proportional to 19,861.40, 27,407.07 and 10,908.68

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Solution

The fourth proportional to 19,861.40, 27,407.07 and 10,908.68 is: 15,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.40 : 27,407.07 = 10,908.68 : x
  2. Step 2: Convert to fraction form
    19,861.40/27,407.07 = 10,908.68/x
  3. Step 3: Cross multiply
    19,861.40x = 27,407.07 × 10,908.68
  4. Step 4: Simplify right side
    19,861.40x = 298,974,956.37
  5. Step 5: Solve for x
    x = 298,974,956.37/19,861.40
  6. Step 6: Final answer
    x = 15,053.07

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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.