Home / 7,914.81-10,921.50-4,377.54

Finding the Fourth Proportional to 7,914.81, 10,921.50 and 4,377.54

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Solution

The fourth proportional to 7,914.81, 10,921.50 and 4,377.54 is: 6,040.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.81 : 10,921.50 = 4,377.54 : x
  2. Step 2: Convert to fraction form
    7,914.81/10,921.50 = 4,377.54/x
  3. Step 3: Cross multiply
    7,914.81x = 10,921.50 × 4,377.54
  4. Step 4: Simplify right side
    7,914.81x = 47,809,303.11
  5. Step 5: Solve for x
    x = 47,809,303.11/7,914.81
  6. Step 6: Final answer
    x = 6,040.49

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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.