Home / 18,666.48-25,784.28-13,942.56

Finding the Fourth Proportional to 18,666.48, 25,784.28 and 13,942.56

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Solution

The fourth proportional to 18,666.48, 25,784.28 and 13,942.56 is: 19,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.48 : 25,784.28 = 13,942.56 : x
  2. Step 2: Convert to fraction form
    18,666.48/25,784.28 = 13,942.56/x
  3. Step 3: Cross multiply
    18,666.48x = 25,784.28 × 13,942.56
  4. Step 4: Simplify right side
    18,666.48x = 359,498,870.96
  5. Step 5: Solve for x
    x = 359,498,870.96/18,666.48
  6. Step 6: Final answer
    x = 19,259.06

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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.