Home / 15,101.96-20,840.69-8,814.33

Finding the Fourth Proportional to 15,101.96, 20,840.69 and 8,814.33

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Solution

The fourth proportional to 15,101.96, 20,840.69 and 8,814.33 is: 12,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,101.96 : 20,840.69 = 8,814.33 : x
  2. Step 2: Convert to fraction form
    15,101.96/20,840.69 = 8,814.33/x
  3. Step 3: Cross multiply
    15,101.96x = 20,840.69 × 8,814.33
  4. Step 4: Simplify right side
    15,101.96x = 183,696,741.12
  5. Step 5: Solve for x
    x = 183,696,741.12/15,101.96
  6. Step 6: Final answer
    x = 12,163.77

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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.