Home / 12,679.47-19,014.62-6,752.70

Finding the Fourth Proportional to 12,679.47, 19,014.62 and 6,752.70

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Solution

The fourth proportional to 12,679.47, 19,014.62 and 6,752.70 is: 10,126.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.47 : 19,014.62 = 6,752.70 : x
  2. Step 2: Convert to fraction form
    12,679.47/19,014.62 = 6,752.70/x
  3. Step 3: Cross multiply
    12,679.47x = 19,014.62 × 6,752.70
  4. Step 4: Simplify right side
    12,679.47x = 128,399,990.71
  5. Step 5: Solve for x
    x = 128,399,990.71/12,679.47
  6. Step 6: Final answer
    x = 10,126.61

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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.