Home / 13,707.04-18,910.24-8,669.36

Finding the Fourth Proportional to 13,707.04, 18,910.24 and 8,669.36

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Solution

The fourth proportional to 13,707.04, 18,910.24 and 8,669.36 is: 11,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.04 : 18,910.24 = 8,669.36 : x
  2. Step 2: Convert to fraction form
    13,707.04/18,910.24 = 8,669.36/x
  3. Step 3: Cross multiply
    13,707.04x = 18,910.24 × 8,669.36
  4. Step 4: Simplify right side
    13,707.04x = 163,939,678.25
  5. Step 5: Solve for x
    x = 163,939,678.25/13,707.04
  6. Step 6: Final answer
    x = 11,960.25

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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.