Home / 15,826.44-21,840.36-8,752.68

Finding the Fourth Proportional to 15,826.44, 21,840.36 and 8,752.68

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Solution

The fourth proportional to 15,826.44, 21,840.36 and 8,752.68 is: 12,078.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,826.44 : 21,840.36 = 8,752.68 : x
  2. Step 2: Convert to fraction form
    15,826.44/21,840.36 = 8,752.68/x
  3. Step 3: Cross multiply
    15,826.44x = 21,840.36 × 8,752.68
  4. Step 4: Simplify right side
    15,826.44x = 191,161,682.16
  5. Step 5: Solve for x
    x = 191,161,682.16/15,826.44
  6. Step 6: Final answer
    x = 12,078.63

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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.