Home / 14,135.42-21,294.80-13,447.74

Finding the Fourth Proportional to 14,135.42, 21,294.80 and 13,447.74

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Solution

The fourth proportional to 14,135.42, 21,294.80 and 13,447.74 is: 20,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.42 : 21,294.80 = 13,447.74 : x
  2. Step 2: Convert to fraction form
    14,135.42/21,294.80 = 13,447.74/x
  3. Step 3: Cross multiply
    14,135.42x = 21,294.80 × 13,447.74
  4. Step 4: Simplify right side
    14,135.42x = 286,366,933.75
  5. Step 5: Solve for x
    x = 286,366,933.75/14,135.42
  6. Step 6: Final answer
    x = 20,258.82

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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.