Home / 7,127.87-10,689.03-4,929.93

Finding the Fourth Proportional to 7,127.87, 10,689.03 and 4,929.93

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Solution

The fourth proportional to 7,127.87, 10,689.03 and 4,929.93 is: 7,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.87 : 10,689.03 = 4,929.93 : x
  2. Step 2: Convert to fraction form
    7,127.87/10,689.03 = 4,929.93/x
  3. Step 3: Cross multiply
    7,127.87x = 10,689.03 × 4,929.93
  4. Step 4: Simplify right side
    7,127.87x = 52,696,169.67
  5. Step 5: Solve for x
    x = 52,696,169.67/7,127.87
  6. Step 6: Final answer
    x = 7,392.98

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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.