Home / 18,938.88-26,136-10,554.72

Finding the Fourth Proportional to 18,938.88, 26,136 and 10,554.72

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Solution

The fourth proportional to 18,938.88, 26,136 and 10,554.72 is: 14,565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.88 : 26,136 = 10,554.72 : x
  2. Step 2: Convert to fraction form
    18,938.88/26,136 = 10,554.72/x
  3. Step 3: Cross multiply
    18,938.88x = 26,136 × 10,554.72
  4. Step 4: Simplify right side
    18,938.88x = 275,858,161.92
  5. Step 5: Solve for x
    x = 275,858,161.92/18,938.88
  6. Step 6: Final answer
    x = 14,565.71

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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.