Home / 14,268.12-19,689.38-7,895.07

Finding the Fourth Proportional to 14,268.12, 19,689.38 and 7,895.07

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Solution

The fourth proportional to 14,268.12, 19,689.38 and 7,895.07 is: 10,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.12 : 19,689.38 = 7,895.07 : x
  2. Step 2: Convert to fraction form
    14,268.12/19,689.38 = 7,895.07/x
  3. Step 3: Cross multiply
    14,268.12x = 19,689.38 × 7,895.07
  4. Step 4: Simplify right side
    14,268.12x = 155,449,023.49
  5. Step 5: Solve for x
    x = 155,449,023.49/14,268.12
  6. Step 6: Final answer
    x = 10,894.85

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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.