Home / 12,880.67-19,292.46-9,897.15

Finding the Fourth Proportional to 12,880.67, 19,292.46 and 9,897.15

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Solution

The fourth proportional to 12,880.67, 19,292.46 and 9,897.15 is: 14,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.67 : 19,292.46 = 9,897.15 : x
  2. Step 2: Convert to fraction form
    12,880.67/19,292.46 = 9,897.15/x
  3. Step 3: Cross multiply
    12,880.67x = 19,292.46 × 9,897.15
  4. Step 4: Simplify right side
    12,880.67x = 190,940,370.49
  5. Step 5: Solve for x
    x = 190,940,370.49/12,880.67
  6. Step 6: Final answer
    x = 14,823.79

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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.