Home / 13,975.66-19,270.67-10,781.70

Finding the Fourth Proportional to 13,975.66, 19,270.67 and 10,781.70

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Solution

The fourth proportional to 13,975.66, 19,270.67 and 10,781.70 is: 14,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.66 : 19,270.67 = 10,781.70 : x
  2. Step 2: Convert to fraction form
    13,975.66/19,270.67 = 10,781.70/x
  3. Step 3: Cross multiply
    13,975.66x = 19,270.67 × 10,781.70
  4. Step 4: Simplify right side
    13,975.66x = 207,770,582.74
  5. Step 5: Solve for x
    x = 207,770,582.74/13,975.66
  6. Step 6: Final answer
    x = 14,866.60

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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.