Home / 19,664.68-27,137.22-10,712.20

Finding the Fourth Proportional to 19,664.68, 27,137.22 and 10,712.20

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Solution

The fourth proportional to 19,664.68, 27,137.22 and 10,712.20 is: 14,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.68 : 27,137.22 = 10,712.20 : x
  2. Step 2: Convert to fraction form
    19,664.68/27,137.22 = 10,712.20/x
  3. Step 3: Cross multiply
    19,664.68x = 27,137.22 × 10,712.20
  4. Step 4: Simplify right side
    19,664.68x = 290,699,328.08
  5. Step 5: Solve for x
    x = 290,699,328.08/19,664.68
  6. Step 6: Final answer
    x = 14,782.82

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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.