Home / 18,947.14-26,145.90-10,449.35

Finding the Fourth Proportional to 18,947.14, 26,145.90 and 10,449.35

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Solution

The fourth proportional to 18,947.14, 26,145.90 and 10,449.35 is: 14,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.14 : 26,145.90 = 10,449.35 : x
  2. Step 2: Convert to fraction form
    18,947.14/26,145.90 = 10,449.35/x
  3. Step 3: Cross multiply
    18,947.14x = 26,145.90 × 10,449.35
  4. Step 4: Simplify right side
    18,947.14x = 273,207,607.92
  5. Step 5: Solve for x
    x = 273,207,607.92/18,947.14
  6. Step 6: Final answer
    x = 14,419.47

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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.