Home / 8,554.30-12,831.45-4,180.30

Finding the Fourth Proportional to 8,554.30, 12,831.45 and 4,180.30

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Solution

The fourth proportional to 8,554.30, 12,831.45 and 4,180.30 is: 6,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.30 : 12,831.45 = 4,180.30 : x
  2. Step 2: Convert to fraction form
    8,554.30/12,831.45 = 4,180.30/x
  3. Step 3: Cross multiply
    8,554.30x = 12,831.45 × 4,180.30
  4. Step 4: Simplify right side
    8,554.30x = 53,639,310.44
  5. Step 5: Solve for x
    x = 53,639,310.44/8,554.30
  6. Step 6: Final answer
    x = 6,270.45

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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.