Home / 12,918.08-19,370.60-6,334.40

Finding the Fourth Proportional to 12,918.08, 19,370.60 and 6,334.40

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Solution

The fourth proportional to 12,918.08, 19,370.60 and 6,334.40 is: 9,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.08 : 19,370.60 = 6,334.40 : x
  2. Step 2: Convert to fraction form
    12,918.08/19,370.60 = 6,334.40/x
  3. Step 3: Cross multiply
    12,918.08x = 19,370.60 × 6,334.40
  4. Step 4: Simplify right side
    12,918.08x = 122,701,128.64
  5. Step 5: Solve for x
    x = 122,701,128.64/12,918.08
  6. Step 6: Final answer
    x = 9,498.40

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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.