Home / 7,405.02-11,109.96-3,512.16

Finding the Fourth Proportional to 7,405.02, 11,109.96 and 3,512.16

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Solution

The fourth proportional to 7,405.02, 11,109.96 and 3,512.16 is: 5,269.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.02 : 11,109.96 = 3,512.16 : x
  2. Step 2: Convert to fraction form
    7,405.02/11,109.96 = 3,512.16/x
  3. Step 3: Cross multiply
    7,405.02x = 11,109.96 × 3,512.16
  4. Step 4: Simplify right side
    7,405.02x = 39,019,957.11
  5. Step 5: Solve for x
    x = 39,019,957.11/7,405.02
  6. Step 6: Final answer
    x = 5,269.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.