Home / 19,747.08-29,587.95-11,939.76

Finding the Fourth Proportional to 19,747.08, 29,587.95 and 11,939.76

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Solution

The fourth proportional to 19,747.08, 29,587.95 and 11,939.76 is: 17,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.08 : 29,587.95 = 11,939.76 : x
  2. Step 2: Convert to fraction form
    19,747.08/29,587.95 = 11,939.76/x
  3. Step 3: Cross multiply
    19,747.08x = 29,587.95 × 11,939.76
  4. Step 4: Simplify right side
    19,747.08x = 353,273,021.89
  5. Step 5: Solve for x
    x = 353,273,021.89/19,747.08
  6. Step 6: Final answer
    x = 17,889.89

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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.