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Finding the Fourth Proportional to 11,356.10, 17,009.85 and 9,898.10

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Solution

The fourth proportional to 11,356.10, 17,009.85 and 9,898.10 is: 14,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.10 : 17,009.85 = 9,898.10 : x
  2. Step 2: Convert to fraction form
    11,356.10/17,009.85 = 9,898.10/x
  3. Step 3: Cross multiply
    11,356.10x = 17,009.85 × 9,898.10
  4. Step 4: Simplify right side
    11,356.10x = 168,365,196.29
  5. Step 5: Solve for x
    x = 168,365,196.29/11,356.10
  6. Step 6: Final answer
    x = 14,825.97

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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.