Home / 19,661.78-27,133.02-10,709.25

Finding the Fourth Proportional to 19,661.78, 27,133.02 and 10,709.25

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Solution

The fourth proportional to 19,661.78, 27,133.02 and 10,709.25 is: 14,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.78 : 27,133.02 = 10,709.25 : x
  2. Step 2: Convert to fraction form
    19,661.78/27,133.02 = 10,709.25/x
  3. Step 3: Cross multiply
    19,661.78x = 27,133.02 × 10,709.25
  4. Step 4: Simplify right side
    19,661.78x = 290,574,294.44
  5. Step 5: Solve for x
    x = 290,574,294.44/19,661.78
  6. Step 6: Final answer
    x = 14,778.64

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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.