Home / 13,158.61-19,738.07-3,798.80

Finding the Fourth Proportional to 13,158.61, 19,738.07 and 3,798.80

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Solution

The fourth proportional to 13,158.61, 19,738.07 and 3,798.80 is: 5,698.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.61 : 19,738.07 = 3,798.80 : x
  2. Step 2: Convert to fraction form
    13,158.61/19,738.07 = 3,798.80/x
  3. Step 3: Cross multiply
    13,158.61x = 19,738.07 × 3,798.80
  4. Step 4: Simplify right side
    13,158.61x = 74,980,980.32
  5. Step 5: Solve for x
    x = 74,980,980.32/13,158.61
  6. Step 6: Final answer
    x = 5,698.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.