Home / 13,434.79-20,151.84-3,574.15

Finding the Fourth Proportional to 13,434.79, 20,151.84 and 3,574.15

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Solution

The fourth proportional to 13,434.79, 20,151.84 and 3,574.15 is: 5,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.79 : 20,151.84 = 3,574.15 : x
  2. Step 2: Convert to fraction form
    13,434.79/20,151.84 = 3,574.15/x
  3. Step 3: Cross multiply
    13,434.79x = 20,151.84 × 3,574.15
  4. Step 4: Simplify right side
    13,434.79x = 72,025,698.53
  5. Step 5: Solve for x
    x = 72,025,698.53/13,434.79
  6. Step 6: Final answer
    x = 5,361.13

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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.