Home / 13,066.92-18,030.60-7,759.80

Finding the Fourth Proportional to 13,066.92, 18,030.60 and 7,759.80

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Solution

The fourth proportional to 13,066.92, 18,030.60 and 7,759.80 is: 10,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.92 : 18,030.60 = 7,759.80 : x
  2. Step 2: Convert to fraction form
    13,066.92/18,030.60 = 7,759.80/x
  3. Step 3: Cross multiply
    13,066.92x = 18,030.60 × 7,759.80
  4. Step 4: Simplify right side
    13,066.92x = 139,913,849.88
  5. Step 5: Solve for x
    x = 139,913,849.88/13,066.92
  6. Step 6: Final answer
    x = 10,707.48

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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.