Home / 13,945.50-19,247.22-7,977.42

Finding the Fourth Proportional to 13,945.50, 19,247.22 and 7,977.42

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Solution

The fourth proportional to 13,945.50, 19,247.22 and 7,977.42 is: 11,010.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.50 : 19,247.22 = 7,977.42 : x
  2. Step 2: Convert to fraction form
    13,945.50/19,247.22 = 7,977.42/x
  3. Step 3: Cross multiply
    13,945.50x = 19,247.22 × 7,977.42
  4. Step 4: Simplify right side
    13,945.50x = 153,543,157.77
  5. Step 5: Solve for x
    x = 153,543,157.77/13,945.50
  6. Step 6: Final answer
    x = 11,010.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.