Home / 18,356.49-25,331.74-10,400.27

Finding the Fourth Proportional to 18,356.49, 25,331.74 and 10,400.27

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Solution

The fourth proportional to 18,356.49, 25,331.74 and 10,400.27 is: 14,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.49 : 25,331.74 = 10,400.27 : x
  2. Step 2: Convert to fraction form
    18,356.49/25,331.74 = 10,400.27/x
  3. Step 3: Cross multiply
    18,356.49x = 25,331.74 × 10,400.27
  4. Step 4: Simplify right side
    18,356.49x = 263,456,782.91
  5. Step 5: Solve for x
    x = 263,456,782.91/18,356.49
  6. Step 6: Final answer
    x = 14,352.24

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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.