Home / 10,505.47-15,753.60-3,110.51

Finding the Fourth Proportional to 10,505.47, 15,753.60 and 3,110.51

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Solution

The fourth proportional to 10,505.47, 15,753.60 and 3,110.51 is: 4,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.47 : 15,753.60 = 3,110.51 : x
  2. Step 2: Convert to fraction form
    10,505.47/15,753.60 = 3,110.51/x
  3. Step 3: Cross multiply
    10,505.47x = 15,753.60 × 3,110.51
  4. Step 4: Simplify right side
    10,505.47x = 49,001,730.34
  5. Step 5: Solve for x
    x = 49,001,730.34/10,505.47
  6. Step 6: Final answer
    x = 4,664.40

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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.