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Finding the Fourth Proportional to 8,700.16, 13,056.39 and 7,863.63

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Solution

The fourth proportional to 8,700.16, 13,056.39 and 7,863.63 is: 11,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.16 : 13,056.39 = 7,863.63 : x
  2. Step 2: Convert to fraction form
    8,700.16/13,056.39 = 7,863.63/x
  3. Step 3: Cross multiply
    8,700.16x = 13,056.39 × 7,863.63
  4. Step 4: Simplify right side
    8,700.16x = 102,670,644.58
  5. Step 5: Solve for x
    x = 102,670,644.58/8,700.16
  6. Step 6: Final answer
    x = 11,801.01

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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.