Home / 8,417.45-11,615.56-4,640.42

Finding the Fourth Proportional to 8,417.45, 11,615.56 and 4,640.42

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Solution

The fourth proportional to 8,417.45, 11,615.56 and 4,640.42 is: 6,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.45 : 11,615.56 = 4,640.42 : x
  2. Step 2: Convert to fraction form
    8,417.45/11,615.56 = 4,640.42/x
  3. Step 3: Cross multiply
    8,417.45x = 11,615.56 × 4,640.42
  4. Step 4: Simplify right side
    8,417.45x = 53,901,076.94
  5. Step 5: Solve for x
    x = 53,901,076.94/8,417.45
  6. Step 6: Final answer
    x = 6,403.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.