Home / 15,124.09-20,887.19-13,474.93

Finding the Fourth Proportional to 15,124.09, 20,887.19 and 13,474.93

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Solution

The fourth proportional to 15,124.09, 20,887.19 and 13,474.93 is: 18,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.09 : 20,887.19 = 13,474.93 : x
  2. Step 2: Convert to fraction form
    15,124.09/20,887.19 = 13,474.93/x
  3. Step 3: Cross multiply
    15,124.09x = 20,887.19 × 13,474.93
  4. Step 4: Simplify right side
    15,124.09x = 281,453,423.15
  5. Step 5: Solve for x
    x = 281,453,423.15/15,124.09
  6. Step 6: Final answer
    x = 18,609.61

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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.