Home / 13,611.36-20,417.16-3,750.42

Finding the Fourth Proportional to 13,611.36, 20,417.16 and 3,750.42

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Solution

The fourth proportional to 13,611.36, 20,417.16 and 3,750.42 is: 5,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.36 : 20,417.16 = 3,750.42 : x
  2. Step 2: Convert to fraction form
    13,611.36/20,417.16 = 3,750.42/x
  3. Step 3: Cross multiply
    13,611.36x = 20,417.16 × 3,750.42
  4. Step 4: Simplify right side
    13,611.36x = 76,572,925.21
  5. Step 5: Solve for x
    x = 76,572,925.21/13,611.36
  6. Step 6: Final answer
    x = 5,625.66

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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.