Home / 7,419.90-11,130.18-4,130.52

Finding the Fourth Proportional to 7,419.90, 11,130.18 and 4,130.52

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Solution

The fourth proportional to 7,419.90, 11,130.18 and 4,130.52 is: 6,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.90 : 11,130.18 = 4,130.52 : x
  2. Step 2: Convert to fraction form
    7,419.90/11,130.18 = 4,130.52/x
  3. Step 3: Cross multiply
    7,419.90x = 11,130.18 × 4,130.52
  4. Step 4: Simplify right side
    7,419.90x = 45,973,431.09
  5. Step 5: Solve for x
    x = 45,973,431.09/7,419.90
  6. Step 6: Final answer
    x = 6,195.96

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Similar ratio
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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.