Home / 13,281.03-18,327.88-7,975.94

Finding the Fourth Proportional to 13,281.03, 18,327.88 and 7,975.94

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Solution

The fourth proportional to 13,281.03, 18,327.88 and 7,975.94 is: 11,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.03 : 18,327.88 = 7,975.94 : x
  2. Step 2: Convert to fraction form
    13,281.03/18,327.88 = 7,975.94/x
  3. Step 3: Cross multiply
    13,281.03x = 18,327.88 × 7,975.94
  4. Step 4: Simplify right side
    13,281.03x = 146,182,058.27
  5. Step 5: Solve for x
    x = 146,182,058.27/13,281.03
  6. Step 6: Final answer
    x = 11,006.83

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1.5x scale

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.