Home / 13,415.24-20,106.54-5,614.92

Finding the Fourth Proportional to 13,415.24, 20,106.54 and 5,614.92

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Solution

The fourth proportional to 13,415.24, 20,106.54 and 5,614.92 is: 8,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.24 : 20,106.54 = 5,614.92 : x
  2. Step 2: Convert to fraction form
    13,415.24/20,106.54 = 5,614.92/x
  3. Step 3: Cross multiply
    13,415.24x = 20,106.54 × 5,614.92
  4. Step 4: Simplify right side
    13,415.24x = 112,896,613.58
  5. Step 5: Solve for x
    x = 112,896,613.58/13,415.24
  6. Step 6: Final answer
    x = 8,415.55

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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.