Home / 7,938.04-10,949.54-5,109.11

Finding the Fourth Proportional to 7,938.04, 10,949.54 and 5,109.11

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Solution

The fourth proportional to 7,938.04, 10,949.54 and 5,109.11 is: 7,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.04 : 10,949.54 = 5,109.11 : x
  2. Step 2: Convert to fraction form
    7,938.04/10,949.54 = 5,109.11/x
  3. Step 3: Cross multiply
    7,938.04x = 10,949.54 × 5,109.11
  4. Step 4: Simplify right side
    7,938.04x = 55,942,406.14
  5. Step 5: Solve for x
    x = 55,942,406.14/7,938.04
  6. Step 6: Final answer
    x = 7,047.38

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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.