Home / 14,069.42-19,415.56-7,781.79

Finding the Fourth Proportional to 14,069.42, 19,415.56 and 7,781.79

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Solution

The fourth proportional to 14,069.42, 19,415.56 and 7,781.79 is: 10,738.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.42 : 19,415.56 = 7,781.79 : x
  2. Step 2: Convert to fraction form
    14,069.42/19,415.56 = 7,781.79/x
  3. Step 3: Cross multiply
    14,069.42x = 19,415.56 × 7,781.79
  4. Step 4: Simplify right side
    14,069.42x = 151,087,810.65
  5. Step 5: Solve for x
    x = 151,087,810.65/14,069.42
  6. Step 6: Final answer
    x = 10,738.74

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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.