Home / 13,573.36-18,722.10-7,984.36

Finding the Fourth Proportional to 13,573.36, 18,722.10 and 7,984.36

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Solution

The fourth proportional to 13,573.36, 18,722.10 and 7,984.36 is: 11,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.36 : 18,722.10 = 7,984.36 : x
  2. Step 2: Convert to fraction form
    13,573.36/18,722.10 = 7,984.36/x
  3. Step 3: Cross multiply
    13,573.36x = 18,722.10 × 7,984.36
  4. Step 4: Simplify right side
    13,573.36x = 149,483,986.36
  5. Step 5: Solve for x
    x = 149,483,986.36/13,573.36
  6. Step 6: Final answer
    x = 11,013.04

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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.