Home / 13,979.08-19,270.26-9,255.16

Finding the Fourth Proportional to 13,979.08, 19,270.26 and 9,255.16

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Solution

The fourth proportional to 13,979.08, 19,270.26 and 9,255.16 is: 12,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.08 : 19,270.26 = 9,255.16 : x
  2. Step 2: Convert to fraction form
    13,979.08/19,270.26 = 9,255.16/x
  3. Step 3: Cross multiply
    13,979.08x = 19,270.26 × 9,255.16
  4. Step 4: Simplify right side
    13,979.08x = 178,349,339.54
  5. Step 5: Solve for x
    x = 178,349,339.54/13,979.08
  6. Step 6: Final answer
    x = 12,758.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.