Home / 11,397.56-15,716.23-7,411.28

Finding the Fourth Proportional to 11,397.56, 15,716.23 and 7,411.28

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Solution

The fourth proportional to 11,397.56, 15,716.23 and 7,411.28 is: 10,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.56 : 15,716.23 = 7,411.28 : x
  2. Step 2: Convert to fraction form
    11,397.56/15,716.23 = 7,411.28/x
  3. Step 3: Cross multiply
    11,397.56x = 15,716.23 × 7,411.28
  4. Step 4: Simplify right side
    11,397.56x = 116,477,283.97
  5. Step 5: Solve for x
    x = 116,477,283.97/11,397.56
  6. Step 6: Final answer
    x = 10,219.50

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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.