Home / 7,431.80-11,133.10-5,346.86

Finding the Fourth Proportional to 7,431.80, 11,133.10 and 5,346.86

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Solution

The fourth proportional to 7,431.80, 11,133.10 and 5,346.86 is: 8,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.80 : 11,133.10 = 5,346.86 : x
  2. Step 2: Convert to fraction form
    7,431.80/11,133.10 = 5,346.86/x
  3. Step 3: Cross multiply
    7,431.80x = 11,133.10 × 5,346.86
  4. Step 4: Simplify right side
    7,431.80x = 59,527,127.07
  5. Step 5: Solve for x
    x = 59,527,127.07/7,431.80
  6. Step 6: Final answer
    x = 8,009.79

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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.