Home / 8,914.62-12,300.36-5,378.04

Finding the Fourth Proportional to 8,914.62, 12,300.36 and 5,378.04

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Solution

The fourth proportional to 8,914.62, 12,300.36 and 5,378.04 is: 7,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.62 : 12,300.36 = 5,378.04 : x
  2. Step 2: Convert to fraction form
    8,914.62/12,300.36 = 5,378.04/x
  3. Step 3: Cross multiply
    8,914.62x = 12,300.36 × 5,378.04
  4. Step 4: Simplify right side
    8,914.62x = 66,151,828.09
  5. Step 5: Solve for x
    x = 66,151,828.09/8,914.62
  6. Step 6: Final answer
    x = 7,420.60

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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.