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Finding the Fourth Proportional to 7,223.80, 9,966.51 and 4,867.30

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Solution

The fourth proportional to 7,223.80, 9,966.51 and 4,867.30 is: 6,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.80 : 9,966.51 = 4,867.30 : x
  2. Step 2: Convert to fraction form
    7,223.80/9,966.51 = 4,867.30/x
  3. Step 3: Cross multiply
    7,223.80x = 9,966.51 × 4,867.30
  4. Step 4: Simplify right side
    7,223.80x = 48,509,994.12
  5. Step 5: Solve for x
    x = 48,509,994.12/7,223.80
  6. Step 6: Final answer
    x = 6,715.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.