Home / 8,341.16-12,507.74-3,143.72

Finding the Fourth Proportional to 8,341.16, 12,507.74 and 3,143.72

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Solution

The fourth proportional to 8,341.16, 12,507.74 and 3,143.72 is: 4,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.16 : 12,507.74 = 3,143.72 : x
  2. Step 2: Convert to fraction form
    8,341.16/12,507.74 = 3,143.72/x
  3. Step 3: Cross multiply
    8,341.16x = 12,507.74 × 3,143.72
  4. Step 4: Simplify right side
    8,341.16x = 39,320,832.39
  5. Step 5: Solve for x
    x = 39,320,832.39/8,341.16
  6. Step 6: Final answer
    x = 4,714.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.