Home / 13,550.40-18,697.92-7,581.60

Finding the Fourth Proportional to 13,550.40, 18,697.92 and 7,581.60

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Solution

The fourth proportional to 13,550.40, 18,697.92 and 7,581.60 is: 10,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.40 : 18,697.92 = 7,581.60 : x
  2. Step 2: Convert to fraction form
    13,550.40/18,697.92 = 7,581.60/x
  3. Step 3: Cross multiply
    13,550.40x = 18,697.92 × 7,581.60
  4. Step 4: Simplify right side
    13,550.40x = 141,760,150.27
  5. Step 5: Solve for x
    x = 141,760,150.27/13,550.40
  6. Step 6: Final answer
    x = 10,461.69

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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.