Home / 14,260.40-19,686.60-9,786

Finding the Fourth Proportional to 14,260.40, 19,686.60 and 9,786

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Solution

The fourth proportional to 14,260.40, 19,686.60 and 9,786 is: 13,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.40 : 19,686.60 = 9,786 : x
  2. Step 2: Convert to fraction form
    14,260.40/19,686.60 = 9,786/x
  3. Step 3: Cross multiply
    14,260.40x = 19,686.60 × 9,786
  4. Step 4: Simplify right side
    14,260.40x = 192,653,067.60
  5. Step 5: Solve for x
    x = 192,653,067.60/14,260.40
  6. Step 6: Final answer
    x = 13,509.65

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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.