Home / 18,688.08-25,788.42-10,729.56

Finding the Fourth Proportional to 18,688.08, 25,788.42 and 10,729.56

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Solution

The fourth proportional to 18,688.08, 25,788.42 and 10,729.56 is: 14,806.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.08 : 25,788.42 = 10,729.56 : x
  2. Step 2: Convert to fraction form
    18,688.08/25,788.42 = 10,729.56/x
  3. Step 3: Cross multiply
    18,688.08x = 25,788.42 × 10,729.56
  4. Step 4: Simplify right side
    18,688.08x = 276,698,399.70
  5. Step 5: Solve for x
    x = 276,698,399.70/18,688.08
  6. Step 6: Final answer
    x = 14,806.14

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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.