Home / 13,422.48-18,516.76-10,273.20

Finding the Fourth Proportional to 13,422.48, 18,516.76 and 10,273.20

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Solution

The fourth proportional to 13,422.48, 18,516.76 and 10,273.20 is: 14,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.48 : 18,516.76 = 10,273.20 : x
  2. Step 2: Convert to fraction form
    13,422.48/18,516.76 = 10,273.20/x
  3. Step 3: Cross multiply
    13,422.48x = 18,516.76 × 10,273.20
  4. Step 4: Simplify right side
    13,422.48x = 190,226,378.83
  5. Step 5: Solve for x
    x = 190,226,378.83/13,422.48
  6. Step 6: Final answer
    x = 14,172.22

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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.