Home / 10,916.89-15,071.04-7,350.60

Finding the Fourth Proportional to 10,916.89, 15,071.04 and 7,350.60

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Solution

The fourth proportional to 10,916.89, 15,071.04 and 7,350.60 is: 10,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.89 : 15,071.04 = 7,350.60 : x
  2. Step 2: Convert to fraction form
    10,916.89/15,071.04 = 7,350.60/x
  3. Step 3: Cross multiply
    10,916.89x = 15,071.04 × 7,350.60
  4. Step 4: Simplify right side
    10,916.89x = 110,781,186.62
  5. Step 5: Solve for x
    x = 110,781,186.62/10,916.89
  6. Step 6: Final answer
    x = 10,147.69

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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.