Home / 18,611.48-25,683.93-10,113.66

Finding the Fourth Proportional to 18,611.48, 25,683.93 and 10,113.66

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Solution

The fourth proportional to 18,611.48, 25,683.93 and 10,113.66 is: 13,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.48 : 25,683.93 = 10,113.66 : x
  2. Step 2: Convert to fraction form
    18,611.48/25,683.93 = 10,113.66/x
  3. Step 3: Cross multiply
    18,611.48x = 25,683.93 × 10,113.66
  4. Step 4: Simplify right side
    18,611.48x = 259,758,535.48
  5. Step 5: Solve for x
    x = 259,758,535.48/18,611.48
  6. Step 6: Final answer
    x = 13,956.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.