Home / 19,530.28-29,288.70-6,379.39

Finding the Fourth Proportional to 19,530.28, 29,288.70 and 6,379.39

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Solution

The fourth proportional to 19,530.28, 29,288.70 and 6,379.39 is: 9,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.28 : 29,288.70 = 6,379.39 : x
  2. Step 2: Convert to fraction form
    19,530.28/29,288.70 = 6,379.39/x
  3. Step 3: Cross multiply
    19,530.28x = 29,288.70 × 6,379.39
  4. Step 4: Simplify right side
    19,530.28x = 186,844,039.89
  5. Step 5: Solve for x
    x = 186,844,039.89/19,530.28
  6. Step 6: Final answer
    x = 9,566.89

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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.