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Finding the Fourth Proportional to 8,323.79, 11,487.17 and 4,787.00

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Solution

The fourth proportional to 8,323.79, 11,487.17 and 4,787.00 is: 6,606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.79 : 11,487.17 = 4,787.00 : x
  2. Step 2: Convert to fraction form
    8,323.79/11,487.17 = 4,787.00/x
  3. Step 3: Cross multiply
    8,323.79x = 11,487.17 × 4,787.00
  4. Step 4: Simplify right side
    8,323.79x = 54,989,080.40
  5. Step 5: Solve for x
    x = 54,989,080.40/8,323.79
  6. Step 6: Final answer
    x = 6,606.26

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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.