Home / 8,415.37-11,612.74-4,638.53

Finding the Fourth Proportional to 8,415.37, 11,612.74 and 4,638.53

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Solution

The fourth proportional to 8,415.37, 11,612.74 and 4,638.53 is: 6,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.37 : 11,612.74 = 4,638.53 : x
  2. Step 2: Convert to fraction form
    8,415.37/11,612.74 = 4,638.53/x
  3. Step 3: Cross multiply
    8,415.37x = 11,612.74 × 4,638.53
  4. Step 4: Simplify right side
    8,415.37x = 53,866,042.87
  5. Step 5: Solve for x
    x = 53,866,042.87/8,415.37
  6. Step 6: Final answer
    x = 6,400.91

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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.