Home / 7,419.40-11,130.92-4,135.25

Finding the Fourth Proportional to 7,419.40, 11,130.92 and 4,135.25

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Solution

The fourth proportional to 7,419.40, 11,130.92 and 4,135.25 is: 6,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.40 : 11,130.92 = 4,135.25 : x
  2. Step 2: Convert to fraction form
    7,419.40/11,130.92 = 4,135.25/x
  3. Step 3: Cross multiply
    7,419.40x = 11,130.92 × 4,135.25
  4. Step 4: Simplify right side
    7,419.40x = 46,029,159.59
  5. Step 5: Solve for x
    x = 46,029,159.59/7,419.40
  6. Step 6: Final answer
    x = 6,203.89

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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.