Home / 7,623.80-11,430.30-3,465.80

Finding the Fourth Proportional to 7,623.80, 11,430.30 and 3,465.80

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Solution

The fourth proportional to 7,623.80, 11,430.30 and 3,465.80 is: 5,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.80 : 11,430.30 = 3,465.80 : x
  2. Step 2: Convert to fraction form
    7,623.80/11,430.30 = 3,465.80/x
  3. Step 3: Cross multiply
    7,623.80x = 11,430.30 × 3,465.80
  4. Step 4: Simplify right side
    7,623.80x = 39,615,133.74
  5. Step 5: Solve for x
    x = 39,615,133.74/7,623.80
  6. Step 6: Final answer
    x = 5,196.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.