Home / 7,385.76-10,185.48-5,704.65

Finding the Fourth Proportional to 7,385.76, 10,185.48 and 5,704.65

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Solution

The fourth proportional to 7,385.76, 10,185.48 and 5,704.65 is: 7,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.76 : 10,185.48 = 5,704.65 : x
  2. Step 2: Convert to fraction form
    7,385.76/10,185.48 = 5,704.65/x
  3. Step 3: Cross multiply
    7,385.76x = 10,185.48 × 5,704.65
  4. Step 4: Simplify right side
    7,385.76x = 58,104,598.48
  5. Step 5: Solve for x
    x = 58,104,598.48/7,385.76
  6. Step 6: Final answer
    x = 7,867.11

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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.