Home / 8,339.36-12,512.28-3,075.44

Finding the Fourth Proportional to 8,339.36, 12,512.28 and 3,075.44

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Solution

The fourth proportional to 8,339.36, 12,512.28 and 3,075.44 is: 4,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.36 : 12,512.28 = 3,075.44 : x
  2. Step 2: Convert to fraction form
    8,339.36/12,512.28 = 3,075.44/x
  3. Step 3: Cross multiply
    8,339.36x = 12,512.28 × 3,075.44
  4. Step 4: Simplify right side
    8,339.36x = 38,480,766.40
  5. Step 5: Solve for x
    x = 38,480,766.40/8,339.36
  6. Step 6: Final answer
    x = 4,614.35

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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.