Home / 19,666.16-27,138.48-10,713.68

Finding the Fourth Proportional to 19,666.16, 27,138.48 and 10,713.68

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Solution

The fourth proportional to 19,666.16, 27,138.48 and 10,713.68 is: 14,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.16 : 27,138.48 = 10,713.68 : x
  2. Step 2: Convert to fraction form
    19,666.16/27,138.48 = 10,713.68/x
  3. Step 3: Cross multiply
    19,666.16x = 27,138.48 × 10,713.68
  4. Step 4: Simplify right side
    19,666.16x = 290,752,990.41
  5. Step 5: Solve for x
    x = 290,752,990.41/19,666.16
  6. Step 6: Final answer
    x = 14,784.43

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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.