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Finding the Fourth Proportional to 10,814, 14,913.99 and 7,035.78

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Solution

The fourth proportional to 10,814, 14,913.99 and 7,035.78 is: 9,703.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,814 : 14,913.99 = 7,035.78 : x
  2. Step 2: Convert to fraction form
    10,814/14,913.99 = 7,035.78/x
  3. Step 3: Cross multiply
    10,814x = 14,913.99 × 7,035.78
  4. Step 4: Simplify right side
    10,814x = 104,931,552.56
  5. Step 5: Solve for x
    x = 104,931,552.56/10,814
  6. Step 6: Final answer
    x = 9,703.31

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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.