Home / 13,342.24-20,015.88-4,578.40

Finding the Fourth Proportional to 13,342.24, 20,015.88 and 4,578.40

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Solution

The fourth proportional to 13,342.24, 20,015.88 and 4,578.40 is: 6,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.24 : 20,015.88 = 4,578.40 : x
  2. Step 2: Convert to fraction form
    13,342.24/20,015.88 = 4,578.40/x
  3. Step 3: Cross multiply
    13,342.24x = 20,015.88 × 4,578.40
  4. Step 4: Simplify right side
    13,342.24x = 91,640,704.99
  5. Step 5: Solve for x
    x = 91,640,704.99/13,342.24
  6. Step 6: Final answer
    x = 6,868.46

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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.