Home / 13,611.95-20,419.08-3,751.23

Finding the Fourth Proportional to 13,611.95, 20,419.08 and 3,751.23

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Solution

The fourth proportional to 13,611.95, 20,419.08 and 3,751.23 is: 5,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.95 : 20,419.08 = 3,751.23 : x
  2. Step 2: Convert to fraction form
    13,611.95/20,419.08 = 3,751.23/x
  3. Step 3: Cross multiply
    13,611.95x = 20,419.08 × 3,751.23
  4. Step 4: Simplify right side
    13,611.95x = 76,596,665.47
  5. Step 5: Solve for x
    x = 76,596,665.47/13,611.95
  6. Step 6: Final answer
    x = 5,627.17

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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.