Home / 15,826-21,840.24-10,246.72

Finding the Fourth Proportional to 15,826, 21,840.24 and 10,246.72

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Solution

The fourth proportional to 15,826, 21,840.24 and 10,246.72 is: 14,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,826 : 21,840.24 = 10,246.72 : x
  2. Step 2: Convert to fraction form
    15,826/21,840.24 = 10,246.72/x
  3. Step 3: Cross multiply
    15,826x = 21,840.24 × 10,246.72
  4. Step 4: Simplify right side
    15,826x = 223,790,824.01
  5. Step 5: Solve for x
    x = 223,790,824.01/15,826
  6. Step 6: Final answer
    x = 14,140.71

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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.