Home / 12,713.61-19,040.35-6,458.12

Finding the Fourth Proportional to 12,713.61, 19,040.35 and 6,458.12

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Solution

The fourth proportional to 12,713.61, 19,040.35 and 6,458.12 is: 9,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.61 : 19,040.35 = 6,458.12 : x
  2. Step 2: Convert to fraction form
    12,713.61/19,040.35 = 6,458.12/x
  3. Step 3: Cross multiply
    12,713.61x = 19,040.35 × 6,458.12
  4. Step 4: Simplify right side
    12,713.61x = 122,964,865.14
  5. Step 5: Solve for x
    x = 122,964,865.14/12,713.61
  6. Step 6: Final answer
    x = 9,671.91

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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.