Home / 7,252.29-9,999.40-6,131.25

Finding the Fourth Proportional to 7,252.29, 9,999.40 and 6,131.25

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Solution

The fourth proportional to 7,252.29, 9,999.40 and 6,131.25 is: 8,453.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,252.29 : 9,999.40 = 6,131.25 : x
  2. Step 2: Convert to fraction form
    7,252.29/9,999.40 = 6,131.25/x
  3. Step 3: Cross multiply
    7,252.29x = 9,999.40 × 6,131.25
  4. Step 4: Simplify right side
    7,252.29x = 61,308,821.25
  5. Step 5: Solve for x
    x = 61,308,821.25/7,252.29
  6. Step 6: Final answer
    x = 8,453.72

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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.