Home / 15,886.53-21,925.28-8,813.41

Finding the Fourth Proportional to 15,886.53, 21,925.28 and 8,813.41

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Solution

The fourth proportional to 15,886.53, 21,925.28 and 8,813.41 is: 12,163.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.53 : 21,925.28 = 8,813.41 : x
  2. Step 2: Convert to fraction form
    15,886.53/21,925.28 = 8,813.41/x
  3. Step 3: Cross multiply
    15,886.53x = 21,925.28 × 8,813.41
  4. Step 4: Simplify right side
    15,886.53x = 193,236,449.23
  5. Step 5: Solve for x
    x = 193,236,449.23/15,886.53
  6. Step 6: Final answer
    x = 12,163.54

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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.