Home / 15,030.97-20,751.34-11,223.54

Finding the Fourth Proportional to 15,030.97, 20,751.34 and 11,223.54

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Solution

The fourth proportional to 15,030.97, 20,751.34 and 11,223.54 is: 15,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.97 : 20,751.34 = 11,223.54 : x
  2. Step 2: Convert to fraction form
    15,030.97/20,751.34 = 11,223.54/x
  3. Step 3: Cross multiply
    15,030.97x = 20,751.34 × 11,223.54
  4. Step 4: Simplify right side
    15,030.97x = 232,903,479.75
  5. Step 5: Solve for x
    x = 232,903,479.75/15,030.97
  6. Step 6: Final answer
    x = 15,494.91

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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.