Home / 7,518.26-11,231.28-5,420.36

Finding the Fourth Proportional to 7,518.26, 11,231.28 and 5,420.36

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Solution

The fourth proportional to 7,518.26, 11,231.28 and 5,420.36 is: 8,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.26 : 11,231.28 = 5,420.36 : x
  2. Step 2: Convert to fraction form
    7,518.26/11,231.28 = 5,420.36/x
  3. Step 3: Cross multiply
    7,518.26x = 11,231.28 × 5,420.36
  4. Step 4: Simplify right side
    7,518.26x = 60,877,592.23
  5. Step 5: Solve for x
    x = 60,877,592.23/7,518.26
  6. Step 6: Final answer
    x = 8,097.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.