Home / 8,975.32-12,384.10-5,438.84

Finding the Fourth Proportional to 8,975.32, 12,384.10 and 5,438.84

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Solution

The fourth proportional to 8,975.32, 12,384.10 and 5,438.84 is: 7,504.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.32 : 12,384.10 = 5,438.84 : x
  2. Step 2: Convert to fraction form
    8,975.32/12,384.10 = 5,438.84/x
  3. Step 3: Cross multiply
    8,975.32x = 12,384.10 × 5,438.84
  4. Step 4: Simplify right side
    8,975.32x = 67,355,138.44
  5. Step 5: Solve for x
    x = 67,355,138.44/8,975.32
  6. Step 6: Final answer
    x = 7,504.48

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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.