Home / 13,955.56-19,244.19-9,711.43

Finding the Fourth Proportional to 13,955.56, 19,244.19 and 9,711.43

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Solution

The fourth proportional to 13,955.56, 19,244.19 and 9,711.43 is: 13,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.56 : 19,244.19 = 9,711.43 : x
  2. Step 2: Convert to fraction form
    13,955.56/19,244.19 = 9,711.43/x
  3. Step 3: Cross multiply
    13,955.56x = 19,244.19 × 9,711.43
  4. Step 4: Simplify right side
    13,955.56x = 186,888,604.09
  5. Step 5: Solve for x
    x = 186,888,604.09/13,955.56
  6. Step 6: Final answer
    x = 13,391.70

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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.