Home / 13,943.71-19,242.39-7,975.63

Finding the Fourth Proportional to 13,943.71, 19,242.39 and 7,975.63

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Solution

The fourth proportional to 13,943.71, 19,242.39 and 7,975.63 is: 11,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.71 : 19,242.39 = 7,975.63 : x
  2. Step 2: Convert to fraction form
    13,943.71/19,242.39 = 7,975.63/x
  3. Step 3: Cross multiply
    13,943.71x = 19,242.39 × 7,975.63
  4. Step 4: Simplify right side
    13,943.71x = 153,470,182.96
  5. Step 5: Solve for x
    x = 153,470,182.96/13,943.71
  6. Step 6: Final answer
    x = 11,006.41

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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.