Home / 13,084.68-18,047.70-8,607

Finding the Fourth Proportional to 13,084.68, 18,047.70 and 8,607

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Solution

The fourth proportional to 13,084.68, 18,047.70 and 8,607 is: 11,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.68 : 18,047.70 = 8,607 : x
  2. Step 2: Convert to fraction form
    13,084.68/18,047.70 = 8,607/x
  3. Step 3: Cross multiply
    13,084.68x = 18,047.70 × 8,607
  4. Step 4: Simplify right side
    13,084.68x = 155,336,553.90
  5. Step 5: Solve for x
    x = 155,336,553.90/13,084.68
  6. Step 6: Final answer
    x = 11,871.64

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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.