Home / 12,738.64-17,580.36-7,073.95

Finding the Fourth Proportional to 12,738.64, 17,580.36 and 7,073.95

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Solution

The fourth proportional to 12,738.64, 17,580.36 and 7,073.95 is: 9,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.64 : 17,580.36 = 7,073.95 : x
  2. Step 2: Convert to fraction form
    12,738.64/17,580.36 = 7,073.95/x
  3. Step 3: Cross multiply
    12,738.64x = 17,580.36 × 7,073.95
  4. Step 4: Simplify right side
    12,738.64x = 124,362,587.62
  5. Step 5: Solve for x
    x = 124,362,587.62/12,738.64
  6. Step 6: Final answer
    x = 9,762.63

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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.