Home / 18,405.46-25,398.66-10,446.63

Finding the Fourth Proportional to 18,405.46, 25,398.66 and 10,446.63

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Solution

The fourth proportional to 18,405.46, 25,398.66 and 10,446.63 is: 14,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.46 : 25,398.66 = 10,446.63 : x
  2. Step 2: Convert to fraction form
    18,405.46/25,398.66 = 10,446.63/x
  3. Step 3: Cross multiply
    18,405.46x = 25,398.66 × 10,446.63
  4. Step 4: Simplify right side
    18,405.46x = 265,330,403.52
  5. Step 5: Solve for x
    x = 265,330,403.52/18,405.46
  6. Step 6: Final answer
    x = 14,415.85

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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.