Home / 8,974.10-13,461.55-3,430.10

Finding the Fourth Proportional to 8,974.10, 13,461.55 and 3,430.10

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Solution

The fourth proportional to 8,974.10, 13,461.55 and 3,430.10 is: 5,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.10 : 13,461.55 = 3,430.10 : x
  2. Step 2: Convert to fraction form
    8,974.10/13,461.55 = 3,430.10/x
  3. Step 3: Cross multiply
    8,974.10x = 13,461.55 × 3,430.10
  4. Step 4: Simplify right side
    8,974.10x = 46,174,462.66
  5. Step 5: Solve for x
    x = 46,174,462.66/8,974.10
  6. Step 6: Final answer
    x = 5,145.30

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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.