Home / 15,879.24-21,903.66-12,516.84

Finding the Fourth Proportional to 15,879.24, 21,903.66 and 12,516.84

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Solution

The fourth proportional to 15,879.24, 21,903.66 and 12,516.84 is: 17,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.24 : 21,903.66 = 12,516.84 : x
  2. Step 2: Convert to fraction form
    15,879.24/21,903.66 = 12,516.84/x
  3. Step 3: Cross multiply
    15,879.24x = 21,903.66 × 12,516.84
  4. Step 4: Simplify right side
    15,879.24x = 274,164,607.63
  5. Step 5: Solve for x
    x = 274,164,607.63/15,879.24
  6. Step 6: Final answer
    x = 17,265.60

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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.