Home / 8,938.36-13,390.10-5,851

Finding the Fourth Proportional to 8,938.36, 13,390.10 and 5,851

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Solution

The fourth proportional to 8,938.36, 13,390.10 and 5,851 is: 8,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.36 : 13,390.10 = 5,851 : x
  2. Step 2: Convert to fraction form
    8,938.36/13,390.10 = 5,851/x
  3. Step 3: Cross multiply
    8,938.36x = 13,390.10 × 5,851
  4. Step 4: Simplify right side
    8,938.36x = 78,345,475.10
  5. Step 5: Solve for x
    x = 78,345,475.10/8,938.36
  6. Step 6: Final answer
    x = 8,765.08

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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.