Home / 12,880.08-19,292.34-8,697.12

Finding the Fourth Proportional to 12,880.08, 19,292.34 and 8,697.12

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Solution

The fourth proportional to 12,880.08, 19,292.34 and 8,697.12 is: 13,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.08 : 19,292.34 = 8,697.12 : x
  2. Step 2: Convert to fraction form
    12,880.08/19,292.34 = 8,697.12/x
  3. Step 3: Cross multiply
    12,880.08x = 19,292.34 × 8,697.12
  4. Step 4: Simplify right side
    12,880.08x = 167,787,796.06
  5. Step 5: Solve for x
    x = 167,787,796.06/12,880.08
  6. Step 6: Final answer
    x = 13,026.92

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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.