Home / 7,427.86-11,135.63-3,477.17

Finding the Fourth Proportional to 7,427.86, 11,135.63 and 3,477.17

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Solution

The fourth proportional to 7,427.86, 11,135.63 and 3,477.17 is: 5,212.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.86 : 11,135.63 = 3,477.17 : x
  2. Step 2: Convert to fraction form
    7,427.86/11,135.63 = 3,477.17/x
  3. Step 3: Cross multiply
    7,427.86x = 11,135.63 × 3,477.17
  4. Step 4: Simplify right side
    7,427.86x = 38,720,515.10
  5. Step 5: Solve for x
    x = 38,720,515.10/7,427.86
  6. Step 6: Final answer
    x = 5,212.88

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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.