Home / 19,178.34-28,762.92-7,329.66

Finding the Fourth Proportional to 19,178.34, 28,762.92 and 7,329.66

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Solution

The fourth proportional to 19,178.34, 28,762.92 and 7,329.66 is: 10,992.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.34 : 28,762.92 = 7,329.66 : x
  2. Step 2: Convert to fraction form
    19,178.34/28,762.92 = 7,329.66/x
  3. Step 3: Cross multiply
    19,178.34x = 28,762.92 × 7,329.66
  4. Step 4: Simplify right side
    19,178.34x = 210,822,424.21
  5. Step 5: Solve for x
    x = 210,822,424.21/19,178.34
  6. Step 6: Final answer
    x = 10,992.74

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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.