Home / 18,370.52-25,351.84-9,987.56

Finding the Fourth Proportional to 18,370.52, 25,351.84 and 9,987.56

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Solution

The fourth proportional to 18,370.52, 25,351.84 and 9,987.56 is: 13,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.52 : 25,351.84 = 9,987.56 : x
  2. Step 2: Convert to fraction form
    18,370.52/25,351.84 = 9,987.56/x
  3. Step 3: Cross multiply
    18,370.52x = 25,351.84 × 9,987.56
  4. Step 4: Simplify right side
    18,370.52x = 253,203,023.11
  5. Step 5: Solve for x
    x = 253,203,023.11/18,370.52
  6. Step 6: Final answer
    x = 13,783.12

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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.