Home / 14,123.11-19,489.23-7,749.55

Finding the Fourth Proportional to 14,123.11, 19,489.23 and 7,749.55

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Solution

The fourth proportional to 14,123.11, 19,489.23 and 7,749.55 is: 10,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.11 : 19,489.23 = 7,749.55 : x
  2. Step 2: Convert to fraction form
    14,123.11/19,489.23 = 7,749.55/x
  3. Step 3: Cross multiply
    14,123.11x = 19,489.23 × 7,749.55
  4. Step 4: Simplify right side
    14,123.11x = 151,032,762.35
  5. Step 5: Solve for x
    x = 151,032,762.35/14,123.11
  6. Step 6: Final answer
    x = 10,694.02

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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.