Home / 13,558.10-18,710.03-7,589.82

Finding the Fourth Proportional to 13,558.10, 18,710.03 and 7,589.82

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Solution

The fourth proportional to 13,558.10, 18,710.03 and 7,589.82 is: 10,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.10 : 18,710.03 = 7,589.82 : x
  2. Step 2: Convert to fraction form
    13,558.10/18,710.03 = 7,589.82/x
  3. Step 3: Cross multiply
    13,558.10x = 18,710.03 × 7,589.82
  4. Step 4: Simplify right side
    13,558.10x = 142,005,741.58
  5. Step 5: Solve for x
    x = 142,005,741.58/13,558.10
  6. Step 6: Final answer
    x = 10,473.87

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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.