Home / 7,419.92-11,130.21-4,130.53

Finding the Fourth Proportional to 7,419.92, 11,130.21 and 4,130.53

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Solution

The fourth proportional to 7,419.92, 11,130.21 and 4,130.53 is: 6,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.92 : 11,130.21 = 4,130.53 : x
  2. Step 2: Convert to fraction form
    7,419.92/11,130.21 = 4,130.53/x
  3. Step 3: Cross multiply
    7,419.92x = 11,130.21 × 4,130.53
  4. Step 4: Simplify right side
    7,419.92x = 45,973,638.49
  5. Step 5: Solve for x
    x = 45,973,638.49/7,419.92
  6. Step 6: Final answer
    x = 6,195.98

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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.