Home / 10,981.47-15,151.81-6,201.51

Finding the Fourth Proportional to 10,981.47, 15,151.81 and 6,201.51

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Solution

The fourth proportional to 10,981.47, 15,151.81 and 6,201.51 is: 8,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.47 : 15,151.81 = 6,201.51 : x
  2. Step 2: Convert to fraction form
    10,981.47/15,151.81 = 6,201.51/x
  3. Step 3: Cross multiply
    10,981.47x = 15,151.81 × 6,201.51
  4. Step 4: Simplify right side
    10,981.47x = 93,964,125.77
  5. Step 5: Solve for x
    x = 93,964,125.77/10,981.47
  6. Step 6: Final answer
    x = 8,556.60

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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.