Home / 7,913.30-10,919.21-4,376.43

Finding the Fourth Proportional to 7,913.30, 10,919.21 and 4,376.43

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Solution

The fourth proportional to 7,913.30, 10,919.21 and 4,376.43 is: 6,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.30 : 10,919.21 = 4,376.43 : x
  2. Step 2: Convert to fraction form
    7,913.30/10,919.21 = 4,376.43/x
  3. Step 3: Cross multiply
    7,913.30x = 10,919.21 × 4,376.43
  4. Step 4: Simplify right side
    7,913.30x = 47,787,136.34
  5. Step 5: Solve for x
    x = 47,787,136.34/7,913.30
  6. Step 6: Final answer
    x = 6,038.84

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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.