Home / 13,623.46-18,802.06-7,655

Finding the Fourth Proportional to 13,623.46, 18,802.06 and 7,655

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Solution

The fourth proportional to 13,623.46, 18,802.06 and 7,655 is: 10,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.46 : 18,802.06 = 7,655 : x
  2. Step 2: Convert to fraction form
    13,623.46/18,802.06 = 7,655/x
  3. Step 3: Cross multiply
    13,623.46x = 18,802.06 × 7,655
  4. Step 4: Simplify right side
    13,623.46x = 143,929,731.03
  5. Step 5: Solve for x
    x = 143,929,731.03/13,623.46
  6. Step 6: Final answer
    x = 10,564.84

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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.