Home / 9,966.28-13,752.66-5,717.32

Finding the Fourth Proportional to 9,966.28, 13,752.66 and 5,717.32

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Solution

The fourth proportional to 9,966.28, 13,752.66 and 5,717.32 is: 7,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.28 : 13,752.66 = 5,717.32 : x
  2. Step 2: Convert to fraction form
    9,966.28/13,752.66 = 5,717.32/x
  3. Step 3: Cross multiply
    9,966.28x = 13,752.66 × 5,717.32
  4. Step 4: Simplify right side
    9,966.28x = 78,628,358.07
  5. Step 5: Solve for x
    x = 78,628,358.07/9,966.28
  6. Step 6: Final answer
    x = 7,889.44

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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.