Home / 11,021.80-15,210.03-5,985.98

Finding the Fourth Proportional to 11,021.80, 15,210.03 and 5,985.98

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Solution

The fourth proportional to 11,021.80, 15,210.03 and 5,985.98 is: 8,260.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.80 : 15,210.03 = 5,985.98 : x
  2. Step 2: Convert to fraction form
    11,021.80/15,210.03 = 5,985.98/x
  3. Step 3: Cross multiply
    11,021.80x = 15,210.03 × 5,985.98
  4. Step 4: Simplify right side
    11,021.80x = 91,046,995.85
  5. Step 5: Solve for x
    x = 91,046,995.85/11,021.80
  6. Step 6: Final answer
    x = 8,260.63

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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.