Home / 18,838.44-25,997.94-10,455

Finding the Fourth Proportional to 18,838.44, 25,997.94 and 10,455

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Solution

The fourth proportional to 18,838.44, 25,997.94 and 10,455 is: 14,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.44 : 25,997.94 = 10,455 : x
  2. Step 2: Convert to fraction form
    18,838.44/25,997.94 = 10,455/x
  3. Step 3: Cross multiply
    18,838.44x = 25,997.94 × 10,455
  4. Step 4: Simplify right side
    18,838.44x = 271,808,462.70
  5. Step 5: Solve for x
    x = 271,808,462.70/18,838.44
  6. Step 6: Final answer
    x = 14,428.40

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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.