Home / 7,419.74-11,130.03-4,478.22

Finding the Fourth Proportional to 7,419.74, 11,130.03 and 4,478.22

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Solution

The fourth proportional to 7,419.74, 11,130.03 and 4,478.22 is: 6,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.74 : 11,130.03 = 4,478.22 : x
  2. Step 2: Convert to fraction form
    7,419.74/11,130.03 = 4,478.22/x
  3. Step 3: Cross multiply
    7,419.74x = 11,130.03 × 4,478.22
  4. Step 4: Simplify right side
    7,419.74x = 49,842,722.95
  5. Step 5: Solve for x
    x = 49,842,722.95/7,419.74
  6. Step 6: Final answer
    x = 6,717.59

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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.