Home / 18,838.84-25,997.70-10,455.36

Finding the Fourth Proportional to 18,838.84, 25,997.70 and 10,455.36

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Solution

The fourth proportional to 18,838.84, 25,997.70 and 10,455.36 is: 14,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.84 : 25,997.70 = 10,455.36 : x
  2. Step 2: Convert to fraction form
    18,838.84/25,997.70 = 10,455.36/x
  3. Step 3: Cross multiply
    18,838.84x = 25,997.70 × 10,455.36
  4. Step 4: Simplify right side
    18,838.84x = 271,815,312.67
  5. Step 5: Solve for x
    x = 271,815,312.67/18,838.84
  6. Step 6: Final answer
    x = 14,428.45

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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.