Home / 13,964.98-19,272.45-7,678.66

Finding the Fourth Proportional to 13,964.98, 19,272.45 and 7,678.66

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Solution

The fourth proportional to 13,964.98, 19,272.45 and 7,678.66 is: 10,596.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.98 : 19,272.45 = 7,678.66 : x
  2. Step 2: Convert to fraction form
    13,964.98/19,272.45 = 7,678.66/x
  3. Step 3: Cross multiply
    13,964.98x = 19,272.45 × 7,678.66
  4. Step 4: Simplify right side
    13,964.98x = 147,986,590.92
  5. Step 5: Solve for x
    x = 147,986,590.92/13,964.98
  6. Step 6: Final answer
    x = 10,596.98

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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.