Home / 15,240.33-21,029.73-8,868.99

Finding the Fourth Proportional to 15,240.33, 21,029.73 and 8,868.99

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Solution

The fourth proportional to 15,240.33, 21,029.73 and 8,868.99 is: 12,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.33 : 21,029.73 = 8,868.99 : x
  2. Step 2: Convert to fraction form
    15,240.33/21,029.73 = 8,868.99/x
  3. Step 3: Cross multiply
    15,240.33x = 21,029.73 × 8,868.99
  4. Step 4: Simplify right side
    15,240.33x = 186,512,465.07
  5. Step 5: Solve for x
    x = 186,512,465.07/15,240.33
  6. Step 6: Final answer
    x = 12,238.09

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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.