Home / 7,420.96-10,239.92-4,436.16

Finding the Fourth Proportional to 7,420.96, 10,239.92 and 4,436.16

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Solution

The fourth proportional to 7,420.96, 10,239.92 and 4,436.16 is: 6,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.96 : 10,239.92 = 4,436.16 : x
  2. Step 2: Convert to fraction form
    7,420.96/10,239.92 = 4,436.16/x
  3. Step 3: Cross multiply
    7,420.96x = 10,239.92 × 4,436.16
  4. Step 4: Simplify right side
    7,420.96x = 45,425,923.51
  5. Step 5: Solve for x
    x = 45,425,923.51/7,420.96
  6. Step 6: Final answer
    x = 6,121.30

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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.