Home / 12,897.49-19,351.70-7,047.27

Finding the Fourth Proportional to 12,897.49, 19,351.70 and 7,047.27

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Solution

The fourth proportional to 12,897.49, 19,351.70 and 7,047.27 is: 10,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.49 : 19,351.70 = 7,047.27 : x
  2. Step 2: Convert to fraction form
    12,897.49/19,351.70 = 7,047.27/x
  3. Step 3: Cross multiply
    12,897.49x = 19,351.70 × 7,047.27
  4. Step 4: Simplify right side
    12,897.49x = 136,376,654.86
  5. Step 5: Solve for x
    x = 136,376,654.86/12,897.49
  6. Step 6: Final answer
    x = 10,573.89

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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.