Home / 15,611.76-21,558.68-10,032.56

Finding the Fourth Proportional to 15,611.76, 21,558.68 and 10,032.56

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Solution

The fourth proportional to 15,611.76, 21,558.68 and 10,032.56 is: 13,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.76 : 21,558.68 = 10,032.56 : x
  2. Step 2: Convert to fraction form
    15,611.76/21,558.68 = 10,032.56/x
  3. Step 3: Cross multiply
    15,611.76x = 21,558.68 × 10,032.56
  4. Step 4: Simplify right side
    15,611.76x = 216,288,750.62
  5. Step 5: Solve for x
    x = 216,288,750.62/15,611.76
  6. Step 6: Final answer
    x = 13,854.22

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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.