Home / 12,707.48-17,536.08-7,999.76

Finding the Fourth Proportional to 12,707.48, 17,536.08 and 7,999.76

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Solution

The fourth proportional to 12,707.48, 17,536.08 and 7,999.76 is: 11,039.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.48 : 17,536.08 = 7,999.76 : x
  2. Step 2: Convert to fraction form
    12,707.48/17,536.08 = 7,999.76/x
  3. Step 3: Cross multiply
    12,707.48x = 17,536.08 × 7,999.76
  4. Step 4: Simplify right side
    12,707.48x = 140,284,431.34
  5. Step 5: Solve for x
    x = 140,284,431.34/12,707.48
  6. Step 6: Final answer
    x = 11,039.52

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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.