Home / 7,320.53-10,107.09-5,638.97

Finding the Fourth Proportional to 7,320.53, 10,107.09 and 5,638.97

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Solution

The fourth proportional to 7,320.53, 10,107.09 and 5,638.97 is: 7,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.53 : 10,107.09 = 5,638.97 : x
  2. Step 2: Convert to fraction form
    7,320.53/10,107.09 = 5,638.97/x
  3. Step 3: Cross multiply
    7,320.53x = 10,107.09 × 5,638.97
  4. Step 4: Simplify right side
    7,320.53x = 56,993,526.76
  5. Step 5: Solve for x
    x = 56,993,526.76/7,320.53
  6. Step 6: Final answer
    x = 7,785.44

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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.