Home / 7,929.04-11,946.31-7,179.04

Finding the Fourth Proportional to 7,929.04, 11,946.31 and 7,179.04

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Solution

The fourth proportional to 7,929.04, 11,946.31 and 7,179.04 is: 10,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.04 : 11,946.31 = 7,179.04 : x
  2. Step 2: Convert to fraction form
    7,929.04/11,946.31 = 7,179.04/x
  3. Step 3: Cross multiply
    7,929.04x = 11,946.31 × 7,179.04
  4. Step 4: Simplify right side
    7,929.04x = 85,763,037.34
  5. Step 5: Solve for x
    x = 85,763,037.34/7,929.04
  6. Step 6: Final answer
    x = 10,816.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.