Home / 11,981.13-17,851.28-11,310.45

Finding the Fourth Proportional to 11,981.13, 17,851.28 and 11,310.45

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Solution

The fourth proportional to 11,981.13, 17,851.28 and 11,310.45 is: 16,852.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.13 : 17,851.28 = 11,310.45 : x
  2. Step 2: Convert to fraction form
    11,981.13/17,851.28 = 11,310.45/x
  3. Step 3: Cross multiply
    11,981.13x = 17,851.28 × 11,310.45
  4. Step 4: Simplify right side
    11,981.13x = 201,906,009.88
  5. Step 5: Solve for x
    x = 201,906,009.88/11,981.13
  6. Step 6: Final answer
    x = 16,852.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.