Home / 8,739.15-12,058.11-5,714.97

Finding the Fourth Proportional to 8,739.15, 12,058.11 and 5,714.97

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Solution

The fourth proportional to 8,739.15, 12,058.11 and 5,714.97 is: 7,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.15 : 12,058.11 = 5,714.97 : x
  2. Step 2: Convert to fraction form
    8,739.15/12,058.11 = 5,714.97/x
  3. Step 3: Cross multiply
    8,739.15x = 12,058.11 × 5,714.97
  4. Step 4: Simplify right side
    8,739.15x = 68,911,736.91
  5. Step 5: Solve for x
    x = 68,911,736.91/8,739.15
  6. Step 6: Final answer
    x = 7,885.40

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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.