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Finding the Fourth Proportional to 10,807.74, 16,211.64 and 6,187.50

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Solution

The fourth proportional to 10,807.74, 16,211.64 and 6,187.50 is: 9,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807.74 : 16,211.64 = 6,187.50 : x
  2. Step 2: Convert to fraction form
    10,807.74/16,211.64 = 6,187.50/x
  3. Step 3: Cross multiply
    10,807.74x = 16,211.64 × 6,187.50
  4. Step 4: Simplify right side
    10,807.74x = 100,309,522.50
  5. Step 5: Solve for x
    x = 100,309,522.50/10,807.74
  6. Step 6: Final answer
    x = 9,281.27

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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.