Home / 14,115.15-19,434.54-11,986.20

Finding the Fourth Proportional to 14,115.15, 19,434.54 and 11,986.20

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Solution

The fourth proportional to 14,115.15, 19,434.54 and 11,986.20 is: 16,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.15 : 19,434.54 = 11,986.20 : x
  2. Step 2: Convert to fraction form
    14,115.15/19,434.54 = 11,986.20/x
  3. Step 3: Cross multiply
    14,115.15x = 19,434.54 × 11,986.20
  4. Step 4: Simplify right side
    14,115.15x = 232,946,283.35
  5. Step 5: Solve for x
    x = 232,946,283.35/14,115.15
  6. Step 6: Final answer
    x = 16,503.28

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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.