Home / 7,621.95-11,437.31-4,111.95

Finding the Fourth Proportional to 7,621.95, 11,437.31 and 4,111.95

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Solution

The fourth proportional to 7,621.95, 11,437.31 and 4,111.95 is: 6,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.95 : 11,437.31 = 4,111.95 : x
  2. Step 2: Convert to fraction form
    7,621.95/11,437.31 = 4,111.95/x
  3. Step 3: Cross multiply
    7,621.95x = 11,437.31 × 4,111.95
  4. Step 4: Simplify right side
    7,621.95x = 47,029,626.29
  5. Step 5: Solve for x
    x = 47,029,626.29/7,621.95
  6. Step 6: Final answer
    x = 6,170.29

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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.