Home / 14,291.79-19,711.83-12,520.32

Finding the Fourth Proportional to 14,291.79, 19,711.83 and 12,520.32

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Solution

The fourth proportional to 14,291.79, 19,711.83 and 12,520.32 is: 17,268.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.79 : 19,711.83 = 12,520.32 : x
  2. Step 2: Convert to fraction form
    14,291.79/19,711.83 = 12,520.32/x
  3. Step 3: Cross multiply
    14,291.79x = 19,711.83 × 12,520.32
  4. Step 4: Simplify right side
    14,291.79x = 246,798,419.39
  5. Step 5: Solve for x
    x = 246,798,419.39/14,291.79
  6. Step 6: Final answer
    x = 17,268.55

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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.