Home / 7,769.62-10,730.81-5,247.35

Finding the Fourth Proportional to 7,769.62, 10,730.81 and 5,247.35

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Solution

The fourth proportional to 7,769.62, 10,730.81 and 5,247.35 is: 7,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.62 : 10,730.81 = 5,247.35 : x
  2. Step 2: Convert to fraction form
    7,769.62/10,730.81 = 5,247.35/x
  3. Step 3: Cross multiply
    7,769.62x = 10,730.81 × 5,247.35
  4. Step 4: Simplify right side
    7,769.62x = 56,308,315.85
  5. Step 5: Solve for x
    x = 56,308,315.85/7,769.62
  6. Step 6: Final answer
    x = 7,247.24

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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.