Home / 15,233.80-21,033.54-11,880.36

Finding the Fourth Proportional to 15,233.80, 21,033.54 and 11,880.36

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Solution

The fourth proportional to 15,233.80, 21,033.54 and 11,880.36 is: 16,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.80 : 21,033.54 = 11,880.36 : x
  2. Step 2: Convert to fraction form
    15,233.80/21,033.54 = 11,880.36/x
  3. Step 3: Cross multiply
    15,233.80x = 21,033.54 × 11,880.36
  4. Step 4: Simplify right side
    15,233.80x = 249,886,027.27
  5. Step 5: Solve for x
    x = 249,886,027.27/15,233.80
  6. Step 6: Final answer
    x = 16,403.39

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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.