Home / 19,665.24-27,137.91-10,712.72

Finding the Fourth Proportional to 19,665.24, 27,137.91 and 10,712.72

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Solution

The fourth proportional to 19,665.24, 27,137.91 and 10,712.72 is: 14,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.24 : 27,137.91 = 10,712.72 : x
  2. Step 2: Convert to fraction form
    19,665.24/27,137.91 = 10,712.72/x
  3. Step 3: Cross multiply
    19,665.24x = 27,137.91 × 10,712.72
  4. Step 4: Simplify right side
    19,665.24x = 290,720,831.22
  5. Step 5: Solve for x
    x = 290,720,831.22/19,665.24
  6. Step 6: Final answer
    x = 14,783.49

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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.