Home / 15,830.19-21,843.41-8,756.60

Finding the Fourth Proportional to 15,830.19, 21,843.41 and 8,756.60

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Solution

The fourth proportional to 15,830.19, 21,843.41 and 8,756.60 is: 12,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,830.19 : 21,843.41 = 8,756.60 : x
  2. Step 2: Convert to fraction form
    15,830.19/21,843.41 = 8,756.60/x
  3. Step 3: Cross multiply
    15,830.19x = 21,843.41 × 8,756.60
  4. Step 4: Simplify right side
    15,830.19x = 191,273,851.01
  5. Step 5: Solve for x
    x = 191,273,851.01/15,830.19
  6. Step 6: Final answer
    x = 12,082.85

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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.