Home / 13,135.56-19,703.34-7,930.44

Finding the Fourth Proportional to 13,135.56, 19,703.34 and 7,930.44

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Solution

The fourth proportional to 13,135.56, 19,703.34 and 7,930.44 is: 11,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.56 : 19,703.34 = 7,930.44 : x
  2. Step 2: Convert to fraction form
    13,135.56/19,703.34 = 7,930.44/x
  3. Step 3: Cross multiply
    13,135.56x = 19,703.34 × 7,930.44
  4. Step 4: Simplify right side
    13,135.56x = 156,256,155.67
  5. Step 5: Solve for x
    x = 156,256,155.67/13,135.56
  6. Step 6: Final answer
    x = 11,895.66

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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.