Home / 18,643.52-25,727.69-10,145.51

Finding the Fourth Proportional to 18,643.52, 25,727.69 and 10,145.51

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Solution

The fourth proportional to 18,643.52, 25,727.69 and 10,145.51 is: 14,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.52 : 25,727.69 = 10,145.51 : x
  2. Step 2: Convert to fraction form
    18,643.52/25,727.69 = 10,145.51/x
  3. Step 3: Cross multiply
    18,643.52x = 25,727.69 × 10,145.51
  4. Step 4: Simplify right side
    18,643.52x = 261,020,529.38
  5. Step 5: Solve for x
    x = 261,020,529.38/18,643.52
  6. Step 6: Final answer
    x = 14,000.60

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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.