Home / 13,281.22-18,327.93-7,312.73

Finding the Fourth Proportional to 13,281.22, 18,327.93 and 7,312.73

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Solution

The fourth proportional to 13,281.22, 18,327.93 and 7,312.73 is: 10,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.22 : 18,327.93 = 7,312.73 : x
  2. Step 2: Convert to fraction form
    13,281.22/18,327.93 = 7,312.73/x
  3. Step 3: Cross multiply
    13,281.22x = 18,327.93 × 7,312.73
  4. Step 4: Simplify right side
    13,281.22x = 134,027,203.55
  5. Step 5: Solve for x
    x = 134,027,203.55/13,281.22
  6. Step 6: Final answer
    x = 10,091.49

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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.