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Finding the Fourth Proportional to 8,473.74, 12,703.74 and 7,317.48

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Solution

The fourth proportional to 8,473.74, 12,703.74 and 7,317.48 is: 10,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.74 : 12,703.74 = 7,317.48 : x
  2. Step 2: Convert to fraction form
    8,473.74/12,703.74 = 7,317.48/x
  3. Step 3: Cross multiply
    8,473.74x = 12,703.74 × 7,317.48
  4. Step 4: Simplify right side
    8,473.74x = 92,959,363.38
  5. Step 5: Solve for x
    x = 92,959,363.38/8,473.74
  6. Step 6: Final answer
    x = 10,970.29

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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.