Home / 8,100.24-12,151.53-2,554.08

Finding the Fourth Proportional to 8,100.24, 12,151.53 and 2,554.08

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Solution

The fourth proportional to 8,100.24, 12,151.53 and 2,554.08 is: 3,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.24 : 12,151.53 = 2,554.08 : x
  2. Step 2: Convert to fraction form
    8,100.24/12,151.53 = 2,554.08/x
  3. Step 3: Cross multiply
    8,100.24x = 12,151.53 × 2,554.08
  4. Step 4: Simplify right side
    8,100.24x = 31,035,979.74
  5. Step 5: Solve for x
    x = 31,035,979.74/8,100.24
  6. Step 6: Final answer
    x = 3,831.49

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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.