Home / 15,904.50-21,949.23-8,830.92

Finding the Fourth Proportional to 15,904.50, 21,949.23 and 8,830.92

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Solution

The fourth proportional to 15,904.50, 21,949.23 and 8,830.92 is: 12,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.50 : 21,949.23 = 8,830.92 : x
  2. Step 2: Convert to fraction form
    15,904.50/21,949.23 = 8,830.92/x
  3. Step 3: Cross multiply
    15,904.50x = 21,949.23 × 8,830.92
  4. Step 4: Simplify right side
    15,904.50x = 193,831,959.94
  5. Step 5: Solve for x
    x = 193,831,959.94/15,904.50
  6. Step 6: Final answer
    x = 12,187.24

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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.