Home / 12,470.79-18,708.46-4,150.01

Finding the Fourth Proportional to 12,470.79, 18,708.46 and 4,150.01

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Solution

The fourth proportional to 12,470.79, 18,708.46 and 4,150.01 is: 6,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.79 : 18,708.46 = 4,150.01 : x
  2. Step 2: Convert to fraction form
    12,470.79/18,708.46 = 4,150.01/x
  3. Step 3: Cross multiply
    12,470.79x = 18,708.46 × 4,150.01
  4. Step 4: Simplify right side
    12,470.79x = 77,640,296.08
  5. Step 5: Solve for x
    x = 77,640,296.08/12,470.79
  6. Step 6: Final answer
    x = 6,225.77

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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.