Home / 19,587.99-27,018.03-12,511.29

Finding the Fourth Proportional to 19,587.99, 27,018.03 and 12,511.29

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Solution

The fourth proportional to 19,587.99, 27,018.03 and 12,511.29 is: 17,257.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.99 : 27,018.03 = 12,511.29 : x
  2. Step 2: Convert to fraction form
    19,587.99/27,018.03 = 12,511.29/x
  3. Step 3: Cross multiply
    19,587.99x = 27,018.03 × 12,511.29
  4. Step 4: Simplify right side
    19,587.99x = 338,030,408.56
  5. Step 5: Solve for x
    x = 338,030,408.56/19,587.99
  6. Step 6: Final answer
    x = 17,257.02

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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.