Home / 14,554.10-21,857.55-12,739.70

Finding the Fourth Proportional to 14,554.10, 21,857.55 and 12,739.70

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Solution

The fourth proportional to 14,554.10, 21,857.55 and 12,739.70 is: 19,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,554.10 : 21,857.55 = 12,739.70 : x
  2. Step 2: Convert to fraction form
    14,554.10/21,857.55 = 12,739.70/x
  3. Step 3: Cross multiply
    14,554.10x = 21,857.55 × 12,739.70
  4. Step 4: Simplify right side
    14,554.10x = 278,458,629.74
  5. Step 5: Solve for x
    x = 278,458,629.74/14,554.10
  6. Step 6: Final answer
    x = 19,132.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.