Home / 13,981.94-19,295.07-7,694.28

Finding the Fourth Proportional to 13,981.94, 19,295.07 and 7,694.28

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Solution

The fourth proportional to 13,981.94, 19,295.07 and 7,694.28 is: 10,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.94 : 19,295.07 = 7,694.28 : x
  2. Step 2: Convert to fraction form
    13,981.94/19,295.07 = 7,694.28/x
  3. Step 3: Cross multiply
    13,981.94x = 19,295.07 × 7,694.28
  4. Step 4: Simplify right side
    13,981.94x = 148,461,671.20
  5. Step 5: Solve for x
    x = 148,461,671.20/13,981.94
  6. Step 6: Final answer
    x = 10,618.10

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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.