Home / 9,679.86-14,519.90-4,129.74

Finding the Fourth Proportional to 9,679.86, 14,519.90 and 4,129.74

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Solution

The fourth proportional to 9,679.86, 14,519.90 and 4,129.74 is: 6,194.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.86 : 14,519.90 = 4,129.74 : x
  2. Step 2: Convert to fraction form
    9,679.86/14,519.90 = 4,129.74/x
  3. Step 3: Cross multiply
    9,679.86x = 14,519.90 × 4,129.74
  4. Step 4: Simplify right side
    9,679.86x = 59,963,427.48
  5. Step 5: Solve for x
    x = 59,963,427.48/9,679.86
  6. Step 6: Final answer
    x = 6,194.66

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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.