Home / 7,913.20-10,919.96-4,376.24

Finding the Fourth Proportional to 7,913.20, 10,919.96 and 4,376.24

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Solution

The fourth proportional to 7,913.20, 10,919.96 and 4,376.24 is: 6,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.20 : 10,919.96 = 4,376.24 : x
  2. Step 2: Convert to fraction form
    7,913.20/10,919.96 = 4,376.24/x
  3. Step 3: Cross multiply
    7,913.20x = 10,919.96 × 4,376.24
  4. Step 4: Simplify right side
    7,913.20x = 47,788,365.75
  5. Step 5: Solve for x
    x = 47,788,365.75/7,913.20
  6. Step 6: Final answer
    x = 6,039.07

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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.