Home / 14,314.74-19,743.66-13,686.54

Finding the Fourth Proportional to 14,314.74, 19,743.66 and 13,686.54

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Solution

The fourth proportional to 14,314.74, 19,743.66 and 13,686.54 is: 18,877.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,314.74 : 19,743.66 = 13,686.54 : x
  2. Step 2: Convert to fraction form
    14,314.74/19,743.66 = 13,686.54/x
  3. Step 3: Cross multiply
    14,314.74x = 19,743.66 × 13,686.54
  4. Step 4: Simplify right side
    14,314.74x = 270,222,392.34
  5. Step 5: Solve for x
    x = 270,222,392.34/14,314.74
  6. Step 6: Final answer
    x = 18,877.21

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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.