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Finding the Fourth Proportional to 10,889.84, 15,035.15 and 8,367.30

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Solution

The fourth proportional to 10,889.84, 15,035.15 and 8,367.30 is: 11,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.84 : 15,035.15 = 8,367.30 : x
  2. Step 2: Convert to fraction form
    10,889.84/15,035.15 = 8,367.30/x
  3. Step 3: Cross multiply
    10,889.84x = 15,035.15 × 8,367.30
  4. Step 4: Simplify right side
    10,889.84x = 125,803,631.51
  5. Step 5: Solve for x
    x = 125,803,631.51/10,889.84
  6. Step 6: Final answer
    x = 11,552.38

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1.5x scale

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.