Home / 18,689.32-25,790.94-10,191.51

Finding the Fourth Proportional to 18,689.32, 25,790.94 and 10,191.51

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Solution

The fourth proportional to 18,689.32, 25,790.94 and 10,191.51 is: 14,064.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.32 : 25,790.94 = 10,191.51 : x
  2. Step 2: Convert to fraction form
    18,689.32/25,790.94 = 10,191.51/x
  3. Step 3: Cross multiply
    18,689.32x = 25,790.94 × 10,191.51
  4. Step 4: Simplify right side
    18,689.32x = 262,848,622.92
  5. Step 5: Solve for x
    x = 262,848,622.92/18,689.32
  6. Step 6: Final answer
    x = 14,064.11

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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.