Home / 12,301.34-18,453.83-6,458.40

Finding the Fourth Proportional to 12,301.34, 18,453.83 and 6,458.40

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Solution

The fourth proportional to 12,301.34, 18,453.83 and 6,458.40 is: 9,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.34 : 18,453.83 = 6,458.40 : x
  2. Step 2: Convert to fraction form
    12,301.34/18,453.83 = 6,458.40/x
  3. Step 3: Cross multiply
    12,301.34x = 18,453.83 × 6,458.40
  4. Step 4: Simplify right side
    12,301.34x = 119,182,183.38
  5. Step 5: Solve for x
    x = 119,182,183.38/12,301.34
  6. Step 6: Final answer
    x = 9,688.56

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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.