Home / 19,813.19-27,342.32-10,860.66

Finding the Fourth Proportional to 19,813.19, 27,342.32 and 10,860.66

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Solution

The fourth proportional to 19,813.19, 27,342.32 and 10,860.66 is: 14,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.19 : 27,342.32 = 10,860.66 : x
  2. Step 2: Convert to fraction form
    19,813.19/27,342.32 = 10,860.66/x
  3. Step 3: Cross multiply
    19,813.19x = 27,342.32 × 10,860.66
  4. Step 4: Simplify right side
    19,813.19x = 296,955,586.83
  5. Step 5: Solve for x
    x = 296,955,586.83/19,813.19
  6. Step 6: Final answer
    x = 14,987.78

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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.