Home / 18,635.79-25,717.56-10,137.99

Finding the Fourth Proportional to 18,635.79, 25,717.56 and 10,137.99

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Solution

The fourth proportional to 18,635.79, 25,717.56 and 10,137.99 is: 13,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.79 : 25,717.56 = 10,137.99 : x
  2. Step 2: Convert to fraction form
    18,635.79/25,717.56 = 10,137.99/x
  3. Step 3: Cross multiply
    18,635.79x = 25,717.56 × 10,137.99
  4. Step 4: Simplify right side
    18,635.79x = 260,724,366.10
  5. Step 5: Solve for x
    x = 260,724,366.10/18,635.79
  6. Step 6: Final answer
    x = 13,990.52

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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.