Home / 15,407.64-21,262.56-8,334.03

Finding the Fourth Proportional to 15,407.64, 21,262.56 and 8,334.03

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Solution

The fourth proportional to 15,407.64, 21,262.56 and 8,334.03 is: 11,500.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.64 : 21,262.56 = 8,334.03 : x
  2. Step 2: Convert to fraction form
    15,407.64/21,262.56 = 8,334.03/x
  3. Step 3: Cross multiply
    15,407.64x = 21,262.56 × 8,334.03
  4. Step 4: Simplify right side
    15,407.64x = 177,202,812.92
  5. Step 5: Solve for x
    x = 177,202,812.92/15,407.64
  6. Step 6: Final answer
    x = 11,500.97

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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.