Home / 11,430.56-17,152.32-7,536.80

Finding the Fourth Proportional to 11,430.56, 17,152.32 and 7,536.80

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Solution

The fourth proportional to 11,430.56, 17,152.32 and 7,536.80 is: 11,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.56 : 17,152.32 = 7,536.80 : x
  2. Step 2: Convert to fraction form
    11,430.56/17,152.32 = 7,536.80/x
  3. Step 3: Cross multiply
    11,430.56x = 17,152.32 × 7,536.80
  4. Step 4: Simplify right side
    11,430.56x = 129,273,605.38
  5. Step 5: Solve for x
    x = 129,273,605.38/11,430.56
  6. Step 6: Final answer
    x = 11,309.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.