Home / 25,749.83-38,642.06-9,109.80

Finding the Fourth Proportional to 25,749.83, 38,642.06 and 9,109.80

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Solution

The fourth proportional to 25,749.83, 38,642.06 and 9,109.80 is: 13,670.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,749.83 : 38,642.06 = 9,109.80 : x
  2. Step 2: Convert to fraction form
    25,749.83/38,642.06 = 9,109.80/x
  3. Step 3: Cross multiply
    25,749.83x = 38,642.06 × 9,109.80
  4. Step 4: Simplify right side
    25,749.83x = 352,021,460.96
  5. Step 5: Solve for x
    x = 352,021,460.96/25,749.83
  6. Step 6: Final answer
    x = 13,670.83

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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.