Home / 11,749.12-17,600.64-5,159.68

Finding the Fourth Proportional to 11,749.12, 17,600.64 and 5,159.68

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Solution

The fourth proportional to 11,749.12, 17,600.64 and 5,159.68 is: 7,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.12 : 17,600.64 = 5,159.68 : x
  2. Step 2: Convert to fraction form
    11,749.12/17,600.64 = 5,159.68/x
  3. Step 3: Cross multiply
    11,749.12x = 17,600.64 × 5,159.68
  4. Step 4: Simplify right side
    11,749.12x = 90,813,670.20
  5. Step 5: Solve for x
    x = 90,813,670.20/11,749.12
  6. Step 6: Final answer
    x = 7,729.40

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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.