Home / 12,560.22-17,335.51-8,311.37

Finding the Fourth Proportional to 12,560.22, 17,335.51 and 8,311.37

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Solution

The fourth proportional to 12,560.22, 17,335.51 and 8,311.37 is: 11,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.22 : 17,335.51 = 8,311.37 : x
  2. Step 2: Convert to fraction form
    12,560.22/17,335.51 = 8,311.37/x
  3. Step 3: Cross multiply
    12,560.22x = 17,335.51 × 8,311.37
  4. Step 4: Simplify right side
    12,560.22x = 144,081,730.29
  5. Step 5: Solve for x
    x = 144,081,730.29/12,560.22
  6. Step 6: Final answer
    x = 11,471.27

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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.