Home / 12,619.76-18,929.64-5,597.06

Finding the Fourth Proportional to 12,619.76, 18,929.64 and 5,597.06

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Solution

The fourth proportional to 12,619.76, 18,929.64 and 5,597.06 is: 8,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.76 : 18,929.64 = 5,597.06 : x
  2. Step 2: Convert to fraction form
    12,619.76/18,929.64 = 5,597.06/x
  3. Step 3: Cross multiply
    12,619.76x = 18,929.64 × 5,597.06
  4. Step 4: Simplify right side
    12,619.76x = 105,950,330.86
  5. Step 5: Solve for x
    x = 105,950,330.86/12,619.76
  6. Step 6: Final answer
    x = 8,395.59

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Similar ratio
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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.