Home / 18,931.37-28,360.62-10,586.07

Finding the Fourth Proportional to 18,931.37, 28,360.62 and 10,586.07

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Solution

The fourth proportional to 18,931.37, 28,360.62 and 10,586.07 is: 15,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.37 : 28,360.62 = 10,586.07 : x
  2. Step 2: Convert to fraction form
    18,931.37/28,360.62 = 10,586.07/x
  3. Step 3: Cross multiply
    18,931.37x = 28,360.62 × 10,586.07
  4. Step 4: Simplify right side
    18,931.37x = 300,227,508.56
  5. Step 5: Solve for x
    x = 300,227,508.56/18,931.37
  6. Step 6: Final answer
    x = 15,858.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.