Home / 8,368.26-11,560.22-6,687.47

Finding the Fourth Proportional to 8,368.26, 11,560.22 and 6,687.47

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Solution

The fourth proportional to 8,368.26, 11,560.22 and 6,687.47 is: 9,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.26 : 11,560.22 = 6,687.47 : x
  2. Step 2: Convert to fraction form
    8,368.26/11,560.22 = 6,687.47/x
  3. Step 3: Cross multiply
    8,368.26x = 11,560.22 × 6,687.47
  4. Step 4: Simplify right side
    8,368.26x = 77,308,533.20
  5. Step 5: Solve for x
    x = 77,308,533.20/8,368.26
  6. Step 6: Final answer
    x = 9,238.30

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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.