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Finding the Fourth Proportional to 11,250.34, 16,865.94 and 6,870.87

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Solution

The fourth proportional to 11,250.34, 16,865.94 and 6,870.87 is: 10,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,250.34 : 16,865.94 = 6,870.87 : x
  2. Step 2: Convert to fraction form
    11,250.34/16,865.94 = 6,870.87/x
  3. Step 3: Cross multiply
    11,250.34x = 16,865.94 × 6,870.87
  4. Step 4: Simplify right side
    11,250.34x = 115,883,646.81
  5. Step 5: Solve for x
    x = 115,883,646.81/11,250.34
  6. Step 6: Final answer
    x = 10,300.46

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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.