Home / 7,405.18-11,113.27-3,509.60

Finding the Fourth Proportional to 7,405.18, 11,113.27 and 3,509.60

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Solution

The fourth proportional to 7,405.18, 11,113.27 and 3,509.60 is: 5,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.18 : 11,113.27 = 3,509.60 : x
  2. Step 2: Convert to fraction form
    7,405.18/11,113.27 = 3,509.60/x
  3. Step 3: Cross multiply
    7,405.18x = 11,113.27 × 3,509.60
  4. Step 4: Simplify right side
    7,405.18x = 39,003,132.39
  5. Step 5: Solve for x
    x = 39,003,132.39/7,405.18
  6. Step 6: Final answer
    x = 5,267.01

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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.