Home / 18,339.30-25,308.31-10,383.06

Finding the Fourth Proportional to 18,339.30, 25,308.31 and 10,383.06

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Solution

The fourth proportional to 18,339.30, 25,308.31 and 10,383.06 is: 14,328.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.30 : 25,308.31 = 10,383.06 : x
  2. Step 2: Convert to fraction form
    18,339.30/25,308.31 = 10,383.06/x
  3. Step 3: Cross multiply
    18,339.30x = 25,308.31 × 10,383.06
  4. Step 4: Simplify right side
    18,339.30x = 262,777,701.23
  5. Step 5: Solve for x
    x = 262,777,701.23/18,339.30
  6. Step 6: Final answer
    x = 14,328.67

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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.