Home / 14,268.40-19,645.66-12,956.20

Finding the Fourth Proportional to 14,268.40, 19,645.66 and 12,956.20

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Solution

The fourth proportional to 14,268.40, 19,645.66 and 12,956.20 is: 17,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.40 : 19,645.66 = 12,956.20 : x
  2. Step 2: Convert to fraction form
    14,268.40/19,645.66 = 12,956.20/x
  3. Step 3: Cross multiply
    14,268.40x = 19,645.66 × 12,956.20
  4. Step 4: Simplify right side
    14,268.40x = 254,533,100.09
  5. Step 5: Solve for x
    x = 254,533,100.09/14,268.40
  6. Step 6: Final answer
    x = 17,838.94

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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.