Home / 19,756.76-29,634.66-6,429.74

Finding the Fourth Proportional to 19,756.76, 29,634.66 and 6,429.74

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Solution

The fourth proportional to 19,756.76, 29,634.66 and 6,429.74 is: 9,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,756.76 : 29,634.66 = 6,429.74 : x
  2. Step 2: Convert to fraction form
    19,756.76/29,634.66 = 6,429.74/x
  3. Step 3: Cross multiply
    19,756.76x = 29,634.66 × 6,429.74
  4. Step 4: Simplify right side
    19,756.76x = 190,543,158.79
  5. Step 5: Solve for x
    x = 190,543,158.79/19,756.76
  6. Step 6: Final answer
    x = 9,644.45

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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.