Home / 19,135.06-28,715.83-7,448.34

Finding the Fourth Proportional to 19,135.06, 28,715.83 and 7,448.34

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Solution

The fourth proportional to 19,135.06, 28,715.83 and 7,448.34 is: 11,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.06 : 28,715.83 = 7,448.34 : x
  2. Step 2: Convert to fraction form
    19,135.06/28,715.83 = 7,448.34/x
  3. Step 3: Cross multiply
    19,135.06x = 28,715.83 × 7,448.34
  4. Step 4: Simplify right side
    19,135.06x = 213,885,265.22
  5. Step 5: Solve for x
    x = 213,885,265.22/19,135.06
  6. Step 6: Final answer
    x = 11,177.66

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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.