Home / 8,399.87-11,589.85-7,060.57

Finding the Fourth Proportional to 8,399.87, 11,589.85 and 7,060.57

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Solution

The fourth proportional to 8,399.87, 11,589.85 and 7,060.57 is: 9,741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.87 : 11,589.85 = 7,060.57 : x
  2. Step 2: Convert to fraction form
    8,399.87/11,589.85 = 7,060.57/x
  3. Step 3: Cross multiply
    8,399.87x = 11,589.85 × 7,060.57
  4. Step 4: Simplify right side
    8,399.87x = 81,830,927.07
  5. Step 5: Solve for x
    x = 81,830,927.07/8,399.87
  6. Step 6: Final answer
    x = 9,741.93

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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.