Home / 15,053.06-20,767.86-8,999.09

Finding the Fourth Proportional to 15,053.06, 20,767.86 and 8,999.09

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Solution

The fourth proportional to 15,053.06, 20,767.86 and 8,999.09 is: 12,415.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.06 : 20,767.86 = 8,999.09 : x
  2. Step 2: Convert to fraction form
    15,053.06/20,767.86 = 8,999.09/x
  3. Step 3: Cross multiply
    15,053.06x = 20,767.86 × 8,999.09
  4. Step 4: Simplify right side
    15,053.06x = 186,891,737.41
  5. Step 5: Solve for x
    x = 186,891,737.41/15,053.06
  6. Step 6: Final answer
    x = 12,415.54

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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.