Home / 15,099.24-20,837.58-9,129.84

Finding the Fourth Proportional to 15,099.24, 20,837.58 and 9,129.84

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Solution

The fourth proportional to 15,099.24, 20,837.58 and 9,129.84 is: 12,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,099.24 : 20,837.58 = 9,129.84 : x
  2. Step 2: Convert to fraction form
    15,099.24/20,837.58 = 9,129.84/x
  3. Step 3: Cross multiply
    15,099.24x = 20,837.58 × 9,129.84
  4. Step 4: Simplify right side
    15,099.24x = 190,243,771.39
  5. Step 5: Solve for x
    x = 190,243,771.39/15,099.24
  6. Step 6: Final answer
    x = 12,599.56

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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.