Home / 12,975.06-19,465.43-4,210.86

Finding the Fourth Proportional to 12,975.06, 19,465.43 and 4,210.86

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Solution

The fourth proportional to 12,975.06, 19,465.43 and 4,210.86 is: 6,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.06 : 19,465.43 = 4,210.86 : x
  2. Step 2: Convert to fraction form
    12,975.06/19,465.43 = 4,210.86/x
  3. Step 3: Cross multiply
    12,975.06x = 19,465.43 × 4,210.86
  4. Step 4: Simplify right side
    12,975.06x = 81,966,200.57
  5. Step 5: Solve for x
    x = 81,966,200.57/12,975.06
  6. Step 6: Final answer
    x = 6,317.21

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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.