Home / 19,915.81-27,483.75-10,963.33

Finding the Fourth Proportional to 19,915.81, 27,483.75 and 10,963.33

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Solution

The fourth proportional to 19,915.81, 27,483.75 and 10,963.33 is: 15,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.81 : 27,483.75 = 10,963.33 : x
  2. Step 2: Convert to fraction form
    19,915.81/27,483.75 = 10,963.33/x
  3. Step 3: Cross multiply
    19,915.81x = 27,483.75 × 10,963.33
  4. Step 4: Simplify right side
    19,915.81x = 301,313,352.18
  5. Step 5: Solve for x
    x = 301,313,352.18/19,915.81
  6. Step 6: Final answer
    x = 15,129.36

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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.