Home / 18,991.23-28,461.04-10,537.80

Finding the Fourth Proportional to 18,991.23, 28,461.04 and 10,537.80

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Solution

The fourth proportional to 18,991.23, 28,461.04 and 10,537.80 is: 15,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,991.23 : 28,461.04 = 10,537.80 : x
  2. Step 2: Convert to fraction form
    18,991.23/28,461.04 = 10,537.80/x
  3. Step 3: Cross multiply
    18,991.23x = 28,461.04 × 10,537.80
  4. Step 4: Simplify right side
    18,991.23x = 299,916,747.31
  5. Step 5: Solve for x
    x = 299,916,747.31/18,991.23
  6. Step 6: Final answer
    x = 15,792.38

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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.