Home / 19,860.10-27,407.10-10,907.71

Finding the Fourth Proportional to 19,860.10, 27,407.10 and 10,907.71

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Solution

The fourth proportional to 19,860.10, 27,407.10 and 10,907.71 is: 15,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.10 : 27,407.10 = 10,907.71 : x
  2. Step 2: Convert to fraction form
    19,860.10/27,407.10 = 10,907.71/x
  3. Step 3: Cross multiply
    19,860.10x = 27,407.10 × 10,907.71
  4. Step 4: Simplify right side
    19,860.10x = 298,948,698.74
  5. Step 5: Solve for x
    x = 298,948,698.74/19,860.10
  6. Step 6: Final answer
    x = 15,052.73

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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.