Home / 8,919.24-13,378.86-4,299

Finding the Fourth Proportional to 8,919.24, 13,378.86 and 4,299

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Solution

The fourth proportional to 8,919.24, 13,378.86 and 4,299 is: 6,448.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.24 : 13,378.86 = 4,299 : x
  2. Step 2: Convert to fraction form
    8,919.24/13,378.86 = 4,299/x
  3. Step 3: Cross multiply
    8,919.24x = 13,378.86 × 4,299
  4. Step 4: Simplify right side
    8,919.24x = 57,515,719.14
  5. Step 5: Solve for x
    x = 57,515,719.14/8,919.24
  6. Step 6: Final answer
    x = 6,448.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.