Home / 15,212.10-21,007.07-14,383.77

Finding the Fourth Proportional to 15,212.10, 21,007.07 and 14,383.77

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Solution

The fourth proportional to 15,212.10, 21,007.07 and 14,383.77 is: 19,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.10 : 21,007.07 = 14,383.77 : x
  2. Step 2: Convert to fraction form
    15,212.10/21,007.07 = 14,383.77/x
  3. Step 3: Cross multiply
    15,212.10x = 21,007.07 × 14,383.77
  4. Step 4: Simplify right side
    15,212.10x = 302,160,845.27
  5. Step 5: Solve for x
    x = 302,160,845.27/15,212.10
  6. Step 6: Final answer
    x = 19,863.20

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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.