Home / 7,914.18-10,921.21-4,329.05

Finding the Fourth Proportional to 7,914.18, 10,921.21 and 4,329.05

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Solution

The fourth proportional to 7,914.18, 10,921.21 and 4,329.05 is: 5,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.18 : 10,921.21 = 4,329.05 : x
  2. Step 2: Convert to fraction form
    7,914.18/10,921.21 = 4,329.05/x
  3. Step 3: Cross multiply
    7,914.18x = 10,921.21 × 4,329.05
  4. Step 4: Simplify right side
    7,914.18x = 47,278,464.15
  5. Step 5: Solve for x
    x = 47,278,464.15/7,914.18
  6. Step 6: Final answer
    x = 5,973.89

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1.5x scale

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.