Home / 12,821.19-19,230.90-6,162.45

Finding the Fourth Proportional to 12,821.19, 19,230.90 and 6,162.45

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Solution

The fourth proportional to 12,821.19, 19,230.90 and 6,162.45 is: 9,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.19 : 19,230.90 = 6,162.45 : x
  2. Step 2: Convert to fraction form
    12,821.19/19,230.90 = 6,162.45/x
  3. Step 3: Cross multiply
    12,821.19x = 19,230.90 × 6,162.45
  4. Step 4: Simplify right side
    12,821.19x = 118,509,459.71
  5. Step 5: Solve for x
    x = 118,509,459.71/12,821.19
  6. Step 6: Final answer
    x = 9,243.25

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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.