Home / 14,270.79-19,698.20-9,800.80

Finding the Fourth Proportional to 14,270.79, 19,698.20 and 9,800.80

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Solution

The fourth proportional to 14,270.79, 19,698.20 and 9,800.80 is: 13,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.79 : 19,698.20 = 9,800.80 : x
  2. Step 2: Convert to fraction form
    14,270.79/19,698.20 = 9,800.80/x
  3. Step 3: Cross multiply
    14,270.79x = 19,698.20 × 9,800.80
  4. Step 4: Simplify right side
    14,270.79x = 193,058,118.56
  5. Step 5: Solve for x
    x = 193,058,118.56/14,270.79
  6. Step 6: Final answer
    x = 13,528.20

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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.