Home / 9,672.36-13,348.80-5,424.14

Finding the Fourth Proportional to 9,672.36, 13,348.80 and 5,424.14

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Solution

The fourth proportional to 9,672.36, 13,348.80 and 5,424.14 is: 7,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672.36 : 13,348.80 = 5,424.14 : x
  2. Step 2: Convert to fraction form
    9,672.36/13,348.80 = 5,424.14/x
  3. Step 3: Cross multiply
    9,672.36x = 13,348.80 × 5,424.14
  4. Step 4: Simplify right side
    9,672.36x = 72,405,760.03
  5. Step 5: Solve for x
    x = 72,405,760.03/9,672.36
  6. Step 6: Final answer
    x = 7,485.84

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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.