Home / 10,383.51-15,563.65-5,453.67

Finding the Fourth Proportional to 10,383.51, 15,563.65 and 5,453.67

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Solution

The fourth proportional to 10,383.51, 15,563.65 and 5,453.67 is: 8,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.51 : 15,563.65 = 5,453.67 : x
  2. Step 2: Convert to fraction form
    10,383.51/15,563.65 = 5,453.67/x
  3. Step 3: Cross multiply
    10,383.51x = 15,563.65 × 5,453.67
  4. Step 4: Simplify right side
    10,383.51x = 84,879,011.10
  5. Step 5: Solve for x
    x = 84,879,011.10/10,383.51
  6. Step 6: Final answer
    x = 8,174.40

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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.