Home / 18,643.17-25,727.66-10,685.86

Finding the Fourth Proportional to 18,643.17, 25,727.66 and 10,685.86

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Solution

The fourth proportional to 18,643.17, 25,727.66 and 10,685.86 is: 14,746.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.17 : 25,727.66 = 10,685.86 : x
  2. Step 2: Convert to fraction form
    18,643.17/25,727.66 = 10,685.86/x
  3. Step 3: Cross multiply
    18,643.17x = 25,727.66 × 10,685.86
  4. Step 4: Simplify right side
    18,643.17x = 274,922,172.89
  5. Step 5: Solve for x
    x = 274,922,172.89/18,643.17
  6. Step 6: Final answer
    x = 14,746.54

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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.