Home / 11,122.01-15,354.56-7,724.06

Finding the Fourth Proportional to 11,122.01, 15,354.56 and 7,724.06

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Solution

The fourth proportional to 11,122.01, 15,354.56 and 7,724.06 is: 10,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.01 : 15,354.56 = 7,724.06 : x
  2. Step 2: Convert to fraction form
    11,122.01/15,354.56 = 7,724.06/x
  3. Step 3: Cross multiply
    11,122.01x = 15,354.56 × 7,724.06
  4. Step 4: Simplify right side
    11,122.01x = 118,599,542.71
  5. Step 5: Solve for x
    x = 118,599,542.71/11,122.01
  6. Step 6: Final answer
    x = 10,663.50

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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.