Home / 19,969.48-29,958.35-8,123.26

Finding the Fourth Proportional to 19,969.48, 29,958.35 and 8,123.26

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Solution

The fourth proportional to 19,969.48, 29,958.35 and 8,123.26 is: 12,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.48 : 29,958.35 = 8,123.26 : x
  2. Step 2: Convert to fraction form
    19,969.48/29,958.35 = 8,123.26/x
  3. Step 3: Cross multiply
    19,969.48x = 29,958.35 × 8,123.26
  4. Step 4: Simplify right side
    19,969.48x = 243,359,466.22
  5. Step 5: Solve for x
    x = 243,359,466.22/19,969.48
  6. Step 6: Final answer
    x = 12,186.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.