Home / 18,551.01-25,586.37-12,885.74

Finding the Fourth Proportional to 18,551.01, 25,586.37 and 12,885.74

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Solution

The fourth proportional to 18,551.01, 25,586.37 and 12,885.74 is: 17,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.01 : 25,586.37 = 12,885.74 : x
  2. Step 2: Convert to fraction form
    18,551.01/25,586.37 = 12,885.74/x
  3. Step 3: Cross multiply
    18,551.01x = 25,586.37 × 12,885.74
  4. Step 4: Simplify right side
    18,551.01x = 329,699,183.43
  5. Step 5: Solve for x
    x = 329,699,183.43/18,551.01
  6. Step 6: Final answer
    x = 17,772.57

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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.