Home / 9,975.88-14,955.66-4,129.32

Finding the Fourth Proportional to 9,975.88, 14,955.66 and 4,129.32

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Solution

The fourth proportional to 9,975.88, 14,955.66 and 4,129.32 is: 6,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.88 : 14,955.66 = 4,129.32 : x
  2. Step 2: Convert to fraction form
    9,975.88/14,955.66 = 4,129.32/x
  3. Step 3: Cross multiply
    9,975.88x = 14,955.66 × 4,129.32
  4. Step 4: Simplify right side
    9,975.88x = 61,756,705.95
  5. Step 5: Solve for x
    x = 61,756,705.95/9,975.88
  6. Step 6: Final answer
    x = 6,190.60

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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.