Home / 13,184.36-19,783.88-5,398.64

Finding the Fourth Proportional to 13,184.36, 19,783.88 and 5,398.64

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Solution

The fourth proportional to 13,184.36, 19,783.88 and 5,398.64 is: 8,100.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.36 : 19,783.88 = 5,398.64 : x
  2. Step 2: Convert to fraction form
    13,184.36/19,783.88 = 5,398.64/x
  3. Step 3: Cross multiply
    13,184.36x = 19,783.88 × 5,398.64
  4. Step 4: Simplify right side
    13,184.36x = 106,806,045.92
  5. Step 5: Solve for x
    x = 106,806,045.92/13,184.36
  6. Step 6: Final answer
    x = 8,100.97

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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.