Home / 13,327.72-18,392.10-9,137.32

Finding the Fourth Proportional to 13,327.72, 18,392.10 and 9,137.32

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Solution

The fourth proportional to 13,327.72, 18,392.10 and 9,137.32 is: 12,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.72 : 18,392.10 = 9,137.32 : x
  2. Step 2: Convert to fraction form
    13,327.72/18,392.10 = 9,137.32/x
  3. Step 3: Cross multiply
    13,327.72x = 18,392.10 × 9,137.32
  4. Step 4: Simplify right side
    13,327.72x = 168,054,503.17
  5. Step 5: Solve for x
    x = 168,054,503.17/13,327.72
  6. Step 6: Final answer
    x = 12,609.40

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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.