Home / 13,036.88-18,005.75-8,837.84

Finding the Fourth Proportional to 13,036.88, 18,005.75 and 8,837.84

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Solution

The fourth proportional to 13,036.88, 18,005.75 and 8,837.84 is: 12,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.88 : 18,005.75 = 8,837.84 : x
  2. Step 2: Convert to fraction form
    13,036.88/18,005.75 = 8,837.84/x
  3. Step 3: Cross multiply
    13,036.88x = 18,005.75 × 8,837.84
  4. Step 4: Simplify right side
    13,036.88x = 159,131,803.36
  5. Step 5: Solve for x
    x = 159,131,803.36/13,036.88
  6. Step 6: Final answer
    x = 12,206.28

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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.