Home / 12,699.39-19,050.35-4,378.32

Finding the Fourth Proportional to 12,699.39, 19,050.35 and 4,378.32

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Solution

The fourth proportional to 12,699.39, 19,050.35 and 4,378.32 is: 6,567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.39 : 19,050.35 = 4,378.32 : x
  2. Step 2: Convert to fraction form
    12,699.39/19,050.35 = 4,378.32/x
  3. Step 3: Cross multiply
    12,699.39x = 19,050.35 × 4,378.32
  4. Step 4: Simplify right side
    12,699.39x = 83,408,435.08
  5. Step 5: Solve for x
    x = 83,408,435.08/12,699.39
  6. Step 6: Final answer
    x = 6,567.91

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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.