Home / 7,987.93-10,998.25-6,790.56

Finding the Fourth Proportional to 7,987.93, 10,998.25 and 6,790.56

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Solution

The fourth proportional to 7,987.93, 10,998.25 and 6,790.56 is: 9,349.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.93 : 10,998.25 = 6,790.56 : x
  2. Step 2: Convert to fraction form
    7,987.93/10,998.25 = 6,790.56/x
  3. Step 3: Cross multiply
    7,987.93x = 10,998.25 × 6,790.56
  4. Step 4: Simplify right side
    7,987.93x = 74,684,276.52
  5. Step 5: Solve for x
    x = 74,684,276.52/7,987.93
  6. Step 6: Final answer
    x = 9,349.64

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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.