Home / 13,918.72-19,211.52-8,610.52

Finding the Fourth Proportional to 13,918.72, 19,211.52 and 8,610.52

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Solution

The fourth proportional to 13,918.72, 19,211.52 and 8,610.52 is: 11,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.72 : 19,211.52 = 8,610.52 : x
  2. Step 2: Convert to fraction form
    13,918.72/19,211.52 = 8,610.52/x
  3. Step 3: Cross multiply
    13,918.72x = 19,211.52 × 8,610.52
  4. Step 4: Simplify right side
    13,918.72x = 165,421,177.19
  5. Step 5: Solve for x
    x = 165,421,177.19/13,918.72
  6. Step 6: Final answer
    x = 11,884.80

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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.