Home / 12,699.58-19,050.63-4,378.50

Finding the Fourth Proportional to 12,699.58, 19,050.63 and 4,378.50

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Solution

The fourth proportional to 12,699.58, 19,050.63 and 4,378.50 is: 6,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.58 : 19,050.63 = 4,378.50 : x
  2. Step 2: Convert to fraction form
    12,699.58/19,050.63 = 4,378.50/x
  3. Step 3: Cross multiply
    12,699.58x = 19,050.63 × 4,378.50
  4. Step 4: Simplify right side
    12,699.58x = 83,413,220.62
  5. Step 5: Solve for x
    x = 83,413,220.62/12,699.58
  6. Step 6: Final answer
    x = 6,568.19

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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.