Home / 7,619.43-10,509.63-6,992.28

Finding the Fourth Proportional to 7,619.43, 10,509.63 and 6,992.28

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Solution

The fourth proportional to 7,619.43, 10,509.63 and 6,992.28 is: 9,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.43 : 10,509.63 = 6,992.28 : x
  2. Step 2: Convert to fraction form
    7,619.43/10,509.63 = 6,992.28/x
  3. Step 3: Cross multiply
    7,619.43x = 10,509.63 × 6,992.28
  4. Step 4: Simplify right side
    7,619.43x = 73,486,275.66
  5. Step 5: Solve for x
    x = 73,486,275.66/7,619.43
  6. Step 6: Final answer
    x = 9,644.59

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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.