Home / 7,914.15-10,920.96-4,377.06

Finding the Fourth Proportional to 7,914.15, 10,920.96 and 4,377.06

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Solution

The fourth proportional to 7,914.15, 10,920.96 and 4,377.06 is: 6,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.15 : 10,920.96 = 4,377.06 : x
  2. Step 2: Convert to fraction form
    7,914.15/10,920.96 = 4,377.06/x
  3. Step 3: Cross multiply
    7,914.15x = 10,920.96 × 4,377.06
  4. Step 4: Simplify right side
    7,914.15x = 47,801,697.18
  5. Step 5: Solve for x
    x = 47,801,697.18/7,914.15
  6. Step 6: Final answer
    x = 6,040.03

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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.