Home / 7,427.22-10,188.72-6,980.10

Finding the Fourth Proportional to 7,427.22, 10,188.72 and 6,980.10

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Solution

The fourth proportional to 7,427.22, 10,188.72 and 6,980.10 is: 9,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.22 : 10,188.72 = 6,980.10 : x
  2. Step 2: Convert to fraction form
    7,427.22/10,188.72 = 6,980.10/x
  3. Step 3: Cross multiply
    7,427.22x = 10,188.72 × 6,980.10
  4. Step 4: Simplify right side
    7,427.22x = 71,118,284.47
  5. Step 5: Solve for x
    x = 71,118,284.47/7,427.22
  6. Step 6: Final answer
    x = 9,575.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.