Home / 10,688.12-14,749.64-6,211.96

Finding the Fourth Proportional to 10,688.12, 14,749.64 and 6,211.96

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Solution

The fourth proportional to 10,688.12, 14,749.64 and 6,211.96 is: 8,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.12 : 14,749.64 = 6,211.96 : x
  2. Step 2: Convert to fraction form
    10,688.12/14,749.64 = 6,211.96/x
  3. Step 3: Cross multiply
    10,688.12x = 14,749.64 × 6,211.96
  4. Step 4: Simplify right side
    10,688.12x = 91,624,173.69
  5. Step 5: Solve for x
    x = 91,624,173.69/10,688.12
  6. Step 6: Final answer
    x = 8,572.52

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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.