Home / 14,258.36-19,667.26-9,145.78

Finding the Fourth Proportional to 14,258.36, 19,667.26 and 9,145.78

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Solution

The fourth proportional to 14,258.36, 19,667.26 and 9,145.78 is: 12,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.36 : 19,667.26 = 9,145.78 : x
  2. Step 2: Convert to fraction form
    14,258.36/19,667.26 = 9,145.78/x
  3. Step 3: Cross multiply
    14,258.36x = 19,667.26 × 9,145.78
  4. Step 4: Simplify right side
    14,258.36x = 179,872,433.16
  5. Step 5: Solve for x
    x = 179,872,433.16/14,258.36
  6. Step 6: Final answer
    x = 12,615.23

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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.