Home / 14,336.81-19,784.10-7,963.80

Finding the Fourth Proportional to 14,336.81, 19,784.10 and 7,963.80

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Solution

The fourth proportional to 14,336.81, 19,784.10 and 7,963.80 is: 10,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,336.81 : 19,784.10 = 7,963.80 : x
  2. Step 2: Convert to fraction form
    14,336.81/19,784.10 = 7,963.80/x
  3. Step 3: Cross multiply
    14,336.81x = 19,784.10 × 7,963.80
  4. Step 4: Simplify right side
    14,336.81x = 157,556,615.58
  5. Step 5: Solve for x
    x = 157,556,615.58/14,336.81
  6. Step 6: Final answer
    x = 10,989.66

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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.