Home / 12,825.36-19,203.26-6,656.40

Finding the Fourth Proportional to 12,825.36, 19,203.26 and 6,656.40

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Solution

The fourth proportional to 12,825.36, 19,203.26 and 6,656.40 is: 9,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.36 : 19,203.26 = 6,656.40 : x
  2. Step 2: Convert to fraction form
    12,825.36/19,203.26 = 6,656.40/x
  3. Step 3: Cross multiply
    12,825.36x = 19,203.26 × 6,656.40
  4. Step 4: Simplify right side
    12,825.36x = 127,824,579.86
  5. Step 5: Solve for x
    x = 127,824,579.86/12,825.36
  6. Step 6: Final answer
    x = 9,966.55

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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.