Home / 14,190.95-19,563.05-9,928.80

Finding the Fourth Proportional to 14,190.95, 19,563.05 and 9,928.80

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Solution

The fourth proportional to 14,190.95, 19,563.05 and 9,928.80 is: 13,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.95 : 19,563.05 = 9,928.80 : x
  2. Step 2: Convert to fraction form
    14,190.95/19,563.05 = 9,928.80/x
  3. Step 3: Cross multiply
    14,190.95x = 19,563.05 × 9,928.80
  4. Step 4: Simplify right side
    14,190.95x = 194,237,561.20
  5. Step 5: Solve for x
    x = 194,237,561.20/14,190.95
  6. Step 6: Final answer
    x = 13,687.43

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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.