Home / 18,938.10-26,136.43-14,149.74

Finding the Fourth Proportional to 18,938.10, 26,136.43 and 14,149.74

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Solution

The fourth proportional to 18,938.10, 26,136.43 and 14,149.74 is: 19,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.10 : 26,136.43 = 14,149.74 : x
  2. Step 2: Convert to fraction form
    18,938.10/26,136.43 = 14,149.74/x
  3. Step 3: Cross multiply
    18,938.10x = 26,136.43 × 14,149.74
  4. Step 4: Simplify right side
    18,938.10x = 369,823,644.44
  5. Step 5: Solve for x
    x = 369,823,644.44/18,938.10
  6. Step 6: Final answer
    x = 19,528.02

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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.