Home / 15,269.10-21,081.51-11,725.98

Finding the Fourth Proportional to 15,269.10, 21,081.51 and 11,725.98

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Solution

The fourth proportional to 15,269.10, 21,081.51 and 11,725.98 is: 16,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269.10 : 21,081.51 = 11,725.98 : x
  2. Step 2: Convert to fraction form
    15,269.10/21,081.51 = 11,725.98/x
  3. Step 3: Cross multiply
    15,269.10x = 21,081.51 × 11,725.98
  4. Step 4: Simplify right side
    15,269.10x = 247,201,364.63
  5. Step 5: Solve for x
    x = 247,201,364.63/15,269.10
  6. Step 6: Final answer
    x = 16,189.65

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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.