Home / 18,643.38-25,694.06-13,599.51

Finding the Fourth Proportional to 18,643.38, 25,694.06 and 13,599.51

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Solution

The fourth proportional to 18,643.38, 25,694.06 and 13,599.51 is: 18,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.38 : 25,694.06 = 13,599.51 : x
  2. Step 2: Convert to fraction form
    18,643.38/25,694.06 = 13,599.51/x
  3. Step 3: Cross multiply
    18,643.38x = 25,694.06 × 13,599.51
  4. Step 4: Simplify right side
    18,643.38x = 349,426,557.91
  5. Step 5: Solve for x
    x = 349,426,557.91/18,643.38
  6. Step 6: Final answer
    x = 18,742.66

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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.