Home / 9,941.68-13,720.80-5,749.84

Finding the Fourth Proportional to 9,941.68, 13,720.80 and 5,749.84

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Solution

The fourth proportional to 9,941.68, 13,720.80 and 5,749.84 is: 7,935.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,941.68 : 13,720.80 = 5,749.84 : x
  2. Step 2: Convert to fraction form
    9,941.68/13,720.80 = 5,749.84/x
  3. Step 3: Cross multiply
    9,941.68x = 13,720.80 × 5,749.84
  4. Step 4: Simplify right side
    9,941.68x = 78,892,404.67
  5. Step 5: Solve for x
    x = 78,892,404.67/9,941.68
  6. Step 6: Final answer
    x = 7,935.52

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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.