Home / 13,591.49-20,386.31-3,729.94

Finding the Fourth Proportional to 13,591.49, 20,386.31 and 3,729.94

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Solution

The fourth proportional to 13,591.49, 20,386.31 and 3,729.94 is: 5,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.49 : 20,386.31 = 3,729.94 : x
  2. Step 2: Convert to fraction form
    13,591.49/20,386.31 = 3,729.94/x
  3. Step 3: Cross multiply
    13,591.49x = 20,386.31 × 3,729.94
  4. Step 4: Simplify right side
    13,591.49x = 76,039,643.51
  5. Step 5: Solve for x
    x = 76,039,643.51/13,591.49
  6. Step 6: Final answer
    x = 5,594.65

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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.