Home / 18,117.06-24,988.47-11,043.78

Finding the Fourth Proportional to 18,117.06, 24,988.47 and 11,043.78

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Solution

The fourth proportional to 18,117.06, 24,988.47 and 11,043.78 is: 15,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.06 : 24,988.47 = 11,043.78 : x
  2. Step 2: Convert to fraction form
    18,117.06/24,988.47 = 11,043.78/x
  3. Step 3: Cross multiply
    18,117.06x = 24,988.47 × 11,043.78
  4. Step 4: Simplify right side
    18,117.06x = 275,967,165.22
  5. Step 5: Solve for x
    x = 275,967,165.22/18,117.06
  6. Step 6: Final answer
    x = 15,232.45

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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.