Home / 8,759.04-13,139.37-3,492.78

Finding the Fourth Proportional to 8,759.04, 13,139.37 and 3,492.78

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Solution

The fourth proportional to 8,759.04, 13,139.37 and 3,492.78 is: 5,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.04 : 13,139.37 = 3,492.78 : x
  2. Step 2: Convert to fraction form
    8,759.04/13,139.37 = 3,492.78/x
  3. Step 3: Cross multiply
    8,759.04x = 13,139.37 × 3,492.78
  4. Step 4: Simplify right side
    8,759.04x = 45,892,928.75
  5. Step 5: Solve for x
    x = 45,892,928.75/8,759.04
  6. Step 6: Final answer
    x = 5,239.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.