Home / 13,552.14-20,429.77-12,648.99

Finding the Fourth Proportional to 13,552.14, 20,429.77 and 12,648.99

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Solution

The fourth proportional to 13,552.14, 20,429.77 and 12,648.99 is: 19,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.14 : 20,429.77 = 12,648.99 : x
  2. Step 2: Convert to fraction form
    13,552.14/20,429.77 = 12,648.99/x
  3. Step 3: Cross multiply
    13,552.14x = 20,429.77 × 12,648.99
  4. Step 4: Simplify right side
    13,552.14x = 258,415,956.43
  5. Step 5: Solve for x
    x = 258,415,956.43/13,552.14
  6. Step 6: Final answer
    x = 19,068.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.