Home / 13,159.21-19,738.78-3,298.47

Finding the Fourth Proportional to 13,159.21, 19,738.78 and 3,298.47

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Solution

The fourth proportional to 13,159.21, 19,738.78 and 3,298.47 is: 4,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.21 : 19,738.78 = 3,298.47 : x
  2. Step 2: Convert to fraction form
    13,159.21/19,738.78 = 3,298.47/x
  3. Step 3: Cross multiply
    13,159.21x = 19,738.78 × 3,298.47
  4. Step 4: Simplify right side
    13,159.21x = 65,107,773.67
  5. Step 5: Solve for x
    x = 65,107,773.67/13,159.21
  6. Step 6: Final answer
    x = 4,947.70

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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.