Home / 8,935.72-12,331.62-6,693.64

Finding the Fourth Proportional to 8,935.72, 12,331.62 and 6,693.64

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Solution

The fourth proportional to 8,935.72, 12,331.62 and 6,693.64 is: 9,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.72 : 12,331.62 = 6,693.64 : x
  2. Step 2: Convert to fraction form
    8,935.72/12,331.62 = 6,693.64/x
  3. Step 3: Cross multiply
    8,935.72x = 12,331.62 × 6,693.64
  4. Step 4: Simplify right side
    8,935.72x = 82,543,424.90
  5. Step 5: Solve for x
    x = 82,543,424.90/8,935.72
  6. Step 6: Final answer
    x = 9,237.47

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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.