Home / 13,215.24-18,243.90-10,224.36

Finding the Fourth Proportional to 13,215.24, 18,243.90 and 10,224.36

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Solution

The fourth proportional to 13,215.24, 18,243.90 and 10,224.36 is: 14,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.24 : 18,243.90 = 10,224.36 : x
  2. Step 2: Convert to fraction form
    13,215.24/18,243.90 = 10,224.36/x
  3. Step 3: Cross multiply
    13,215.24x = 18,243.90 × 10,224.36
  4. Step 4: Simplify right side
    13,215.24x = 186,532,201.40
  5. Step 5: Solve for x
    x = 186,532,201.40/13,215.24
  6. Step 6: Final answer
    x = 14,114.93

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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.