Home / 18,689.03-25,790.54-10,191.16

Finding the Fourth Proportional to 18,689.03, 25,790.54 and 10,191.16

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Solution

The fourth proportional to 18,689.03, 25,790.54 and 10,191.16 is: 14,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.03 : 25,790.54 = 10,191.16 : x
  2. Step 2: Convert to fraction form
    18,689.03/25,790.54 = 10,191.16/x
  3. Step 3: Cross multiply
    18,689.03x = 25,790.54 × 10,191.16
  4. Step 4: Simplify right side
    18,689.03x = 262,835,607.37
  5. Step 5: Solve for x
    x = 262,835,607.37/18,689.03
  6. Step 6: Final answer
    x = 14,063.63

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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.