Home / 9,881.28-13,637.46-5,689.56

Finding the Fourth Proportional to 9,881.28, 13,637.46 and 5,689.56

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Solution

The fourth proportional to 9,881.28, 13,637.46 and 5,689.56 is: 7,852.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.28 : 13,637.46 = 5,689.56 : x
  2. Step 2: Convert to fraction form
    9,881.28/13,637.46 = 5,689.56/x
  3. Step 3: Cross multiply
    9,881.28x = 13,637.46 × 5,689.56
  4. Step 4: Simplify right side
    9,881.28x = 77,591,146.92
  5. Step 5: Solve for x
    x = 77,591,146.92/9,881.28
  6. Step 6: Final answer
    x = 7,852.34

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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.