Home / 12,985.17-19,488.33-6,747.09

Finding the Fourth Proportional to 12,985.17, 19,488.33 and 6,747.09

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Solution

The fourth proportional to 12,985.17, 19,488.33 and 6,747.09 is: 10,126.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.17 : 19,488.33 = 6,747.09 : x
  2. Step 2: Convert to fraction form
    12,985.17/19,488.33 = 6,747.09/x
  3. Step 3: Cross multiply
    12,985.17x = 19,488.33 × 6,747.09
  4. Step 4: Simplify right side
    12,985.17x = 131,489,516.46
  5. Step 5: Solve for x
    x = 131,489,516.46/12,985.17
  6. Step 6: Final answer
    x = 10,126.13

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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.