Home / 11,112.84-15,331.10-7,283.43

Finding the Fourth Proportional to 11,112.84, 15,331.10 and 7,283.43

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Solution

The fourth proportional to 11,112.84, 15,331.10 and 7,283.43 is: 10,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.84 : 15,331.10 = 7,283.43 : x
  2. Step 2: Convert to fraction form
    11,112.84/15,331.10 = 7,283.43/x
  3. Step 3: Cross multiply
    11,112.84x = 15,331.10 × 7,283.43
  4. Step 4: Simplify right side
    11,112.84x = 111,662,957.26
  5. Step 5: Solve for x
    x = 111,662,957.26/11,112.84
  6. Step 6: Final answer
    x = 10,048.10

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1.5x scale

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.