Home / 18,788.70-25,926.78-10,831.53

Finding the Fourth Proportional to 18,788.70, 25,926.78 and 10,831.53

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Solution

The fourth proportional to 18,788.70, 25,926.78 and 10,831.53 is: 14,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.70 : 25,926.78 = 10,831.53 : x
  2. Step 2: Convert to fraction form
    18,788.70/25,926.78 = 10,831.53/x
  3. Step 3: Cross multiply
    18,788.70x = 25,926.78 × 10,831.53
  4. Step 4: Simplify right side
    18,788.70x = 280,826,695.37
  5. Step 5: Solve for x
    x = 280,826,695.37/18,788.70
  6. Step 6: Final answer
    x = 14,946.57

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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.