Home / 12,698.64-19,060.25-6,129.45

Finding the Fourth Proportional to 12,698.64, 19,060.25 and 6,129.45

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Solution

The fourth proportional to 12,698.64, 19,060.25 and 6,129.45 is: 9,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.64 : 19,060.25 = 6,129.45 : x
  2. Step 2: Convert to fraction form
    12,698.64/19,060.25 = 6,129.45/x
  3. Step 3: Cross multiply
    12,698.64x = 19,060.25 × 6,129.45
  4. Step 4: Simplify right side
    12,698.64x = 116,828,849.36
  5. Step 5: Solve for x
    x = 116,828,849.36/12,698.64
  6. Step 6: Final answer
    x = 9,200.11

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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.