Home / 15,405.75-23,118.20-9,863.07

Finding the Fourth Proportional to 15,405.75, 23,118.20 and 9,863.07

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Solution

The fourth proportional to 15,405.75, 23,118.20 and 9,863.07 is: 14,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.75 : 23,118.20 = 9,863.07 : x
  2. Step 2: Convert to fraction form
    15,405.75/23,118.20 = 9,863.07/x
  3. Step 3: Cross multiply
    15,405.75x = 23,118.20 × 9,863.07
  4. Step 4: Simplify right side
    15,405.75x = 228,016,493.17
  5. Step 5: Solve for x
    x = 228,016,493.17/15,405.75
  6. Step 6: Final answer
    x = 14,800.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.