Home / 19,866.48-27,415.80-11,909.04

Finding the Fourth Proportional to 19,866.48, 27,415.80 and 11,909.04

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Solution

The fourth proportional to 19,866.48, 27,415.80 and 11,909.04 is: 16,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.48 : 27,415.80 = 11,909.04 : x
  2. Step 2: Convert to fraction form
    19,866.48/27,415.80 = 11,909.04/x
  3. Step 3: Cross multiply
    19,866.48x = 27,415.80 × 11,909.04
  4. Step 4: Simplify right side
    19,866.48x = 326,495,858.83
  5. Step 5: Solve for x
    x = 326,495,858.83/19,866.48
  6. Step 6: Final answer
    x = 16,434.51

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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.