Home / 19,665.86-27,138.92-10,713.33

Finding the Fourth Proportional to 19,665.86, 27,138.92 and 10,713.33

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Solution

The fourth proportional to 19,665.86, 27,138.92 and 10,713.33 is: 14,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.86 : 27,138.92 = 10,713.33 : x
  2. Step 2: Convert to fraction form
    19,665.86/27,138.92 = 10,713.33/x
  3. Step 3: Cross multiply
    19,665.86x = 27,138.92 × 10,713.33
  4. Step 4: Simplify right side
    19,665.86x = 290,748,152.24
  5. Step 5: Solve for x
    x = 290,748,152.24/19,665.86
  6. Step 6: Final answer
    x = 14,784.41

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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.