Home / 15,015.03-20,718.54-8,554.74

Finding the Fourth Proportional to 15,015.03, 20,718.54 and 8,554.74

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Solution

The fourth proportional to 15,015.03, 20,718.54 and 8,554.74 is: 11,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.03 : 20,718.54 = 8,554.74 : x
  2. Step 2: Convert to fraction form
    15,015.03/20,718.54 = 8,554.74/x
  3. Step 3: Cross multiply
    15,015.03x = 20,718.54 × 8,554.74
  4. Step 4: Simplify right side
    15,015.03x = 177,241,722.88
  5. Step 5: Solve for x
    x = 177,241,722.88/15,015.03
  6. Step 6: Final answer
    x = 11,804.29

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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.