Home / 7,914.30-10,921.40-4,329.17

Finding the Fourth Proportional to 7,914.30, 10,921.40 and 4,329.17

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Solution

The fourth proportional to 7,914.30, 10,921.40 and 4,329.17 is: 5,974.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.30 : 10,921.40 = 4,329.17 : x
  2. Step 2: Convert to fraction form
    7,914.30/10,921.40 = 4,329.17/x
  3. Step 3: Cross multiply
    7,914.30x = 10,921.40 × 4,329.17
  4. Step 4: Simplify right side
    7,914.30x = 47,280,520.99
  5. Step 5: Solve for x
    x = 47,280,520.99/7,914.30
  6. Step 6: Final answer
    x = 5,974.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.