Home / 13,005.13-17,955.87-8,536.48

Finding the Fourth Proportional to 13,005.13, 17,955.87 and 8,536.48

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Solution

The fourth proportional to 13,005.13, 17,955.87 and 8,536.48 is: 11,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.13 : 17,955.87 = 8,536.48 : x
  2. Step 2: Convert to fraction form
    13,005.13/17,955.87 = 8,536.48/x
  3. Step 3: Cross multiply
    13,005.13x = 17,955.87 × 8,536.48
  4. Step 4: Simplify right side
    13,005.13x = 153,279,925.14
  5. Step 5: Solve for x
    x = 153,279,925.14/13,005.13
  6. Step 6: Final answer
    x = 11,786.11

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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.