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Finding the Fourth Proportional to 8,345.72, 12,518.58 and 6,694.13

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Solution

The fourth proportional to 8,345.72, 12,518.58 and 6,694.13 is: 10,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.72 : 12,518.58 = 6,694.13 : x
  2. Step 2: Convert to fraction form
    8,345.72/12,518.58 = 6,694.13/x
  3. Step 3: Cross multiply
    8,345.72x = 12,518.58 × 6,694.13
  4. Step 4: Simplify right side
    8,345.72x = 83,801,058.33
  5. Step 5: Solve for x
    x = 83,801,058.33/8,345.72
  6. Step 6: Final answer
    x = 10,041.20

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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.