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Finding the Fourth Proportional to 8,700.05, 13,033.67 and 6,742.68

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Solution

The fourth proportional to 8,700.05, 13,033.67 and 6,742.68 is: 10,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.05 : 13,033.67 = 6,742.68 : x
  2. Step 2: Convert to fraction form
    8,700.05/13,033.67 = 6,742.68/x
  3. Step 3: Cross multiply
    8,700.05x = 13,033.67 × 6,742.68
  4. Step 4: Simplify right side
    8,700.05x = 87,881,832.32
  5. Step 5: Solve for x
    x = 87,881,832.32/8,700.05
  6. Step 6: Final answer
    x = 10,101.31

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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.