Home / 18,643.12-25,727.52-10,259.62

Finding the Fourth Proportional to 18,643.12, 25,727.52 and 10,259.62

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Solution

The fourth proportional to 18,643.12, 25,727.52 and 10,259.62 is: 14,158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.12 : 25,727.52 = 10,259.62 : x
  2. Step 2: Convert to fraction form
    18,643.12/25,727.52 = 10,259.62/x
  3. Step 3: Cross multiply
    18,643.12x = 25,727.52 × 10,259.62
  4. Step 4: Simplify right side
    18,643.12x = 263,954,578.74
  5. Step 5: Solve for x
    x = 263,954,578.74/18,643.12
  6. Step 6: Final answer
    x = 14,158.28

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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.