Home / 9,619.86-13,254.78-6,470.58

Finding the Fourth Proportional to 9,619.86, 13,254.78 and 6,470.58

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Solution

The fourth proportional to 9,619.86, 13,254.78 and 6,470.58 is: 8,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619.86 : 13,254.78 = 6,470.58 : x
  2. Step 2: Convert to fraction form
    9,619.86/13,254.78 = 6,470.58/x
  3. Step 3: Cross multiply
    9,619.86x = 13,254.78 × 6,470.58
  4. Step 4: Simplify right side
    9,619.86x = 85,766,114.37
  5. Step 5: Solve for x
    x = 85,766,114.37/9,619.86
  6. Step 6: Final answer
    x = 8,915.53

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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.