Home / 18,783.56-25,921.08-10,285.58

Finding the Fourth Proportional to 18,783.56, 25,921.08 and 10,285.58

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Solution

The fourth proportional to 18,783.56, 25,921.08 and 10,285.58 is: 14,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.56 : 25,921.08 = 10,285.58 : x
  2. Step 2: Convert to fraction form
    18,783.56/25,921.08 = 10,285.58/x
  3. Step 3: Cross multiply
    18,783.56x = 25,921.08 × 10,285.58
  4. Step 4: Simplify right side
    18,783.56x = 266,613,406.83
  5. Step 5: Solve for x
    x = 266,613,406.83/18,783.56
  6. Step 6: Final answer
    x = 14,193.97

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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.