Home / 13,457.89-18,567.66-9,481.20

Finding the Fourth Proportional to 13,457.89, 18,567.66 and 9,481.20

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Solution

The fourth proportional to 13,457.89, 18,567.66 and 9,481.20 is: 13,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.89 : 18,567.66 = 9,481.20 : x
  2. Step 2: Convert to fraction form
    13,457.89/18,567.66 = 9,481.20/x
  3. Step 3: Cross multiply
    13,457.89x = 18,567.66 × 9,481.20
  4. Step 4: Simplify right side
    13,457.89x = 176,043,697.99
  5. Step 5: Solve for x
    x = 176,043,697.99/13,457.89
  6. Step 6: Final answer
    x = 13,081.08

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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.