Home / 8,359.72-11,530.01-6,120.79

Finding the Fourth Proportional to 8,359.72, 11,530.01 and 6,120.79

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Solution

The fourth proportional to 8,359.72, 11,530.01 and 6,120.79 is: 8,442.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.72 : 11,530.01 = 6,120.79 : x
  2. Step 2: Convert to fraction form
    8,359.72/11,530.01 = 6,120.79/x
  3. Step 3: Cross multiply
    8,359.72x = 11,530.01 × 6,120.79
  4. Step 4: Simplify right side
    8,359.72x = 70,572,756.38
  5. Step 5: Solve for x
    x = 70,572,756.38/8,359.72
  6. Step 6: Final answer
    x = 8,442.00

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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.