Home / 10,983.06-15,147.81-9,946.26

Finding the Fourth Proportional to 10,983.06, 15,147.81 and 9,946.26

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Solution

The fourth proportional to 10,983.06, 15,147.81 and 9,946.26 is: 13,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.06 : 15,147.81 = 9,946.26 : x
  2. Step 2: Convert to fraction form
    10,983.06/15,147.81 = 9,946.26/x
  3. Step 3: Cross multiply
    10,983.06x = 15,147.81 × 9,946.26
  4. Step 4: Simplify right side
    10,983.06x = 150,664,056.69
  5. Step 5: Solve for x
    x = 150,664,056.69/10,983.06
  6. Step 6: Final answer
    x = 13,717.86

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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.