Home / 18,339.57-25,308.90-9,956.07

Finding the Fourth Proportional to 18,339.57, 25,308.90 and 9,956.07

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Solution

The fourth proportional to 18,339.57, 25,308.90 and 9,956.07 is: 13,739.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.57 : 25,308.90 = 9,956.07 : x
  2. Step 2: Convert to fraction form
    18,339.57/25,308.90 = 9,956.07/x
  3. Step 3: Cross multiply
    18,339.57x = 25,308.90 × 9,956.07
  4. Step 4: Simplify right side
    18,339.57x = 251,977,180.02
  5. Step 5: Solve for x
    x = 251,977,180.02/18,339.57
  6. Step 6: Final answer
    x = 13,739.54

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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.