Home / 8,281.08-12,430.05-3,603.18

Finding the Fourth Proportional to 8,281.08, 12,430.05 and 3,603.18

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Solution

The fourth proportional to 8,281.08, 12,430.05 and 3,603.18 is: 5,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.08 : 12,430.05 = 3,603.18 : x
  2. Step 2: Convert to fraction form
    8,281.08/12,430.05 = 3,603.18/x
  3. Step 3: Cross multiply
    8,281.08x = 12,430.05 × 3,603.18
  4. Step 4: Simplify right side
    8,281.08x = 44,787,647.43
  5. Step 5: Solve for x
    x = 44,787,647.43/8,281.08
  6. Step 6: Final answer
    x = 5,408.43

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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.