Home / 19,916.48-27,485.60-11,959.36

Finding the Fourth Proportional to 19,916.48, 27,485.60 and 11,959.36

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Solution

The fourth proportional to 19,916.48, 27,485.60 and 11,959.36 is: 16,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.48 : 27,485.60 = 11,959.36 : x
  2. Step 2: Convert to fraction form
    19,916.48/27,485.60 = 11,959.36/x
  3. Step 3: Cross multiply
    19,916.48x = 27,485.60 × 11,959.36
  4. Step 4: Simplify right side
    19,916.48x = 328,710,185.22
  5. Step 5: Solve for x
    x = 328,710,185.22/19,916.48
  6. Step 6: Final answer
    x = 16,504.43

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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.