Home / 7,400.36-11,102.40-3,503.72

Finding the Fourth Proportional to 7,400.36, 11,102.40 and 3,503.72

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Solution

The fourth proportional to 7,400.36, 11,102.40 and 3,503.72 is: 5,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.36 : 11,102.40 = 3,503.72 : x
  2. Step 2: Convert to fraction form
    7,400.36/11,102.40 = 3,503.72/x
  3. Step 3: Cross multiply
    7,400.36x = 11,102.40 × 3,503.72
  4. Step 4: Simplify right side
    7,400.36x = 38,899,700.93
  5. Step 5: Solve for x
    x = 38,899,700.93/7,400.36
  6. Step 6: Final answer
    x = 5,256.46

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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.