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Finding the Fourth Proportional to 7,686.42, 10,606.32 and 5,329.32

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Solution

The fourth proportional to 7,686.42, 10,606.32 and 5,329.32 is: 7,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.42 : 10,606.32 = 5,329.32 : x
  2. Step 2: Convert to fraction form
    7,686.42/10,606.32 = 5,329.32/x
  3. Step 3: Cross multiply
    7,686.42x = 10,606.32 × 5,329.32
  4. Step 4: Simplify right side
    7,686.42x = 56,524,473.30
  5. Step 5: Solve for x
    x = 56,524,473.30/7,686.42
  6. Step 6: Final answer
    x = 7,353.81

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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.