Home / 19,860.25-27,407.13-10,908.34

Finding the Fourth Proportional to 19,860.25, 27,407.13 and 10,908.34

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Solution

The fourth proportional to 19,860.25, 27,407.13 and 10,908.34 is: 15,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.25 : 27,407.13 = 10,908.34 : x
  2. Step 2: Convert to fraction form
    19,860.25/27,407.13 = 10,908.34/x
  3. Step 3: Cross multiply
    19,860.25x = 27,407.13 × 10,908.34
  4. Step 4: Simplify right side
    19,860.25x = 298,966,292.46
  5. Step 5: Solve for x
    x = 298,966,292.46/19,860.25
  6. Step 6: Final answer
    x = 15,053.50

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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.