Home / 7,422.13-10,242.53-4,279.33

Finding the Fourth Proportional to 7,422.13, 10,242.53 and 4,279.33

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Solution

The fourth proportional to 7,422.13, 10,242.53 and 4,279.33 is: 5,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.13 : 10,242.53 = 4,279.33 : x
  2. Step 2: Convert to fraction form
    7,422.13/10,242.53 = 4,279.33/x
  3. Step 3: Cross multiply
    7,422.13x = 10,242.53 × 4,279.33
  4. Step 4: Simplify right side
    7,422.13x = 43,831,165.90
  5. Step 5: Solve for x
    x = 43,831,165.90/7,422.13
  6. Step 6: Final answer
    x = 5,905.47

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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.