Home / 18,823.49-28,242.15-7,727.20

Finding the Fourth Proportional to 18,823.49, 28,242.15 and 7,727.20

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Solution

The fourth proportional to 18,823.49, 28,242.15 and 7,727.20 is: 11,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.49 : 28,242.15 = 7,727.20 : x
  2. Step 2: Convert to fraction form
    18,823.49/28,242.15 = 7,727.20/x
  3. Step 3: Cross multiply
    18,823.49x = 28,242.15 × 7,727.20
  4. Step 4: Simplify right side
    18,823.49x = 218,232,670.87
  5. Step 5: Solve for x
    x = 218,232,670.87/18,823.49
  6. Step 6: Final answer
    x = 11,593.64

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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.