Home / 18,783.04-25,918.80-11,227.87

Finding the Fourth Proportional to 18,783.04, 25,918.80 and 11,227.87

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Solution

The fourth proportional to 18,783.04, 25,918.80 and 11,227.87 is: 15,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.04 : 25,918.80 = 11,227.87 : x
  2. Step 2: Convert to fraction form
    18,783.04/25,918.80 = 11,227.87/x
  3. Step 3: Cross multiply
    18,783.04x = 25,918.80 × 11,227.87
  4. Step 4: Simplify right side
    18,783.04x = 291,012,916.96
  5. Step 5: Solve for x
    x = 291,012,916.96/18,783.04
  6. Step 6: Final answer
    x = 15,493.39

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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.