Home / 7,338.85-11,009.90-2,145.13

Finding the Fourth Proportional to 7,338.85, 11,009.90 and 2,145.13

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Solution

The fourth proportional to 7,338.85, 11,009.90 and 2,145.13 is: 3,218.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.85 : 11,009.90 = 2,145.13 : x
  2. Step 2: Convert to fraction form
    7,338.85/11,009.90 = 2,145.13/x
  3. Step 3: Cross multiply
    7,338.85x = 11,009.90 × 2,145.13
  4. Step 4: Simplify right side
    7,338.85x = 23,617,666.79
  5. Step 5: Solve for x
    x = 23,617,666.79/7,338.85
  6. Step 6: Final answer
    x = 3,218.17

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1.5x scale

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.