Home / 15,873.34-21,904.22-8,799.76

Finding the Fourth Proportional to 15,873.34, 21,904.22 and 8,799.76

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Solution

The fourth proportional to 15,873.34, 21,904.22 and 8,799.76 is: 12,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,873.34 : 21,904.22 = 8,799.76 : x
  2. Step 2: Convert to fraction form
    15,873.34/21,904.22 = 8,799.76/x
  3. Step 3: Cross multiply
    15,873.34x = 21,904.22 × 8,799.76
  4. Step 4: Simplify right side
    15,873.34x = 192,751,878.99
  5. Step 5: Solve for x
    x = 192,751,878.99/15,873.34
  6. Step 6: Final answer
    x = 12,143.12

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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.