Home / 18,699.56-25,783.86-13,654.76

Finding the Fourth Proportional to 18,699.56, 25,783.86 and 13,654.76

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Solution

The fourth proportional to 18,699.56, 25,783.86 and 13,654.76 is: 18,827.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.56 : 25,783.86 = 13,654.76 : x
  2. Step 2: Convert to fraction form
    18,699.56/25,783.86 = 13,654.76/x
  3. Step 3: Cross multiply
    18,699.56x = 25,783.86 × 13,654.76
  4. Step 4: Simplify right side
    18,699.56x = 352,072,420.17
  5. Step 5: Solve for x
    x = 352,072,420.17/18,699.56
  6. Step 6: Final answer
    x = 18,827.85

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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.