Home / 7,914.31-10,921.39-4,329.18

Finding the Fourth Proportional to 7,914.31, 10,921.39 and 4,329.18

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Solution

The fourth proportional to 7,914.31, 10,921.39 and 4,329.18 is: 5,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.31 : 10,921.39 = 4,329.18 : x
  2. Step 2: Convert to fraction form
    7,914.31/10,921.39 = 4,329.18/x
  3. Step 3: Cross multiply
    7,914.31x = 10,921.39 × 4,329.18
  4. Step 4: Simplify right side
    7,914.31x = 47,280,652.34
  5. Step 5: Solve for x
    x = 47,280,652.34/7,914.31
  6. Step 6: Final answer
    x = 5,974.07

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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.