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Finding the Fourth Proportional to 6,643.30, 9,954.15 and 4,893.70

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Solution

The fourth proportional to 6,643.30, 9,954.15 and 4,893.70 is: 7,332.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.30 : 9,954.15 = 4,893.70 : x
  2. Step 2: Convert to fraction form
    6,643.30/9,954.15 = 4,893.70/x
  3. Step 3: Cross multiply
    6,643.30x = 9,954.15 × 4,893.70
  4. Step 4: Simplify right side
    6,643.30x = 48,712,623.86
  5. Step 5: Solve for x
    x = 48,712,623.86/6,643.30
  6. Step 6: Final answer
    x = 7,332.59

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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.