Home / 13,130.10-19,669.23-7,579.98

Finding the Fourth Proportional to 13,130.10, 19,669.23 and 7,579.98

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Solution

The fourth proportional to 13,130.10, 19,669.23 and 7,579.98 is: 11,355.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.10 : 19,669.23 = 7,579.98 : x
  2. Step 2: Convert to fraction form
    13,130.10/19,669.23 = 7,579.98/x
  3. Step 3: Cross multiply
    13,130.10x = 19,669.23 × 7,579.98
  4. Step 4: Simplify right side
    13,130.10x = 149,092,370.02
  5. Step 5: Solve for x
    x = 149,092,370.02/13,130.10
  6. Step 6: Final answer
    x = 11,355.01

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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.