Home / 13,632.84-18,767.70-13,005.90

Finding the Fourth Proportional to 13,632.84, 18,767.70 and 13,005.90

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Solution

The fourth proportional to 13,632.84, 18,767.70 and 13,005.90 is: 17,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.84 : 18,767.70 = 13,005.90 : x
  2. Step 2: Convert to fraction form
    13,632.84/18,767.70 = 13,005.90/x
  3. Step 3: Cross multiply
    13,632.84x = 18,767.70 × 13,005.90
  4. Step 4: Simplify right side
    13,632.84x = 244,090,829.43
  5. Step 5: Solve for x
    x = 244,090,829.43/13,632.84
  6. Step 6: Final answer
    x = 17,904.62

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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.