Home / 18,437.90-25,380.34-13,953.74

Finding the Fourth Proportional to 18,437.90, 25,380.34 and 13,953.74

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Solution

The fourth proportional to 18,437.90, 25,380.34 and 13,953.74 is: 19,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.90 : 25,380.34 = 13,953.74 : x
  2. Step 2: Convert to fraction form
    18,437.90/25,380.34 = 13,953.74/x
  3. Step 3: Cross multiply
    18,437.90x = 25,380.34 × 13,953.74
  4. Step 4: Simplify right side
    18,437.90x = 354,150,503.69
  5. Step 5: Solve for x
    x = 354,150,503.69/18,437.90
  6. Step 6: Final answer
    x = 19,207.75

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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.