Home / 17,783.17-26,660.46-12,220.03

Finding the Fourth Proportional to 17,783.17, 26,660.46 and 12,220.03

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Solution

The fourth proportional to 17,783.17, 26,660.46 and 12,220.03 is: 18,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,783.17 : 26,660.46 = 12,220.03 : x
  2. Step 2: Convert to fraction form
    17,783.17/26,660.46 = 12,220.03/x
  3. Step 3: Cross multiply
    17,783.17x = 26,660.46 × 12,220.03
  4. Step 4: Simplify right side
    17,783.17x = 325,791,621.01
  5. Step 5: Solve for x
    x = 325,791,621.01/17,783.17
  6. Step 6: Final answer
    x = 18,320.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.