Home / 19,135.56-28,716.58-7,448.84

Finding the Fourth Proportional to 19,135.56, 28,716.58 and 7,448.84

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Solution

The fourth proportional to 19,135.56, 28,716.58 and 7,448.84 is: 11,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.56 : 28,716.58 = 7,448.84 : x
  2. Step 2: Convert to fraction form
    19,135.56/28,716.58 = 7,448.84/x
  3. Step 3: Cross multiply
    19,135.56x = 28,716.58 × 7,448.84
  4. Step 4: Simplify right side
    19,135.56x = 213,905,209.77
  5. Step 5: Solve for x
    x = 213,905,209.77/19,135.56
  6. Step 6: Final answer
    x = 11,178.41

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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.