Home / 7,125.36-9,835.77-6,378.02

Finding the Fourth Proportional to 7,125.36, 9,835.77 and 6,378.02

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Solution

The fourth proportional to 7,125.36, 9,835.77 and 6,378.02 is: 8,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.36 : 9,835.77 = 6,378.02 : x
  2. Step 2: Convert to fraction form
    7,125.36/9,835.77 = 6,378.02/x
  3. Step 3: Cross multiply
    7,125.36x = 9,835.77 × 6,378.02
  4. Step 4: Simplify right side
    7,125.36x = 62,732,708.01
  5. Step 5: Solve for x
    x = 62,732,708.01/7,125.36
  6. Step 6: Final answer
    x = 8,804.15

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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.