Home / 7,389.36-11,076.03-3,643.74

Finding the Fourth Proportional to 7,389.36, 11,076.03 and 3,643.74

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Solution

The fourth proportional to 7,389.36, 11,076.03 and 3,643.74 is: 5,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.36 : 11,076.03 = 3,643.74 : x
  2. Step 2: Convert to fraction form
    7,389.36/11,076.03 = 3,643.74/x
  3. Step 3: Cross multiply
    7,389.36x = 11,076.03 × 3,643.74
  4. Step 4: Simplify right side
    7,389.36x = 40,358,173.55
  5. Step 5: Solve for x
    x = 40,358,173.55/7,389.36
  6. Step 6: Final answer
    x = 5,461.66

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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.