Home / 12,708.88-19,030.84-7,518.48

Finding the Fourth Proportional to 12,708.88, 19,030.84 and 7,518.48

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Solution

The fourth proportional to 12,708.88, 19,030.84 and 7,518.48 is: 11,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.88 : 19,030.84 = 7,518.48 : x
  2. Step 2: Convert to fraction form
    12,708.88/19,030.84 = 7,518.48/x
  3. Step 3: Cross multiply
    12,708.88x = 19,030.84 × 7,518.48
  4. Step 4: Simplify right side
    12,708.88x = 143,082,989.92
  5. Step 5: Solve for x
    x = 143,082,989.92/12,708.88
  6. Step 6: Final answer
    x = 11,258.51

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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.