Home / 10,503.20-15,735.60-8,544.80

Finding the Fourth Proportional to 10,503.20, 15,735.60 and 8,544.80

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Solution

The fourth proportional to 10,503.20, 15,735.60 and 8,544.80 is: 12,801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.20 : 15,735.60 = 8,544.80 : x
  2. Step 2: Convert to fraction form
    10,503.20/15,735.60 = 8,544.80/x
  3. Step 3: Cross multiply
    10,503.20x = 15,735.60 × 8,544.80
  4. Step 4: Simplify right side
    10,503.20x = 134,457,554.88
  5. Step 5: Solve for x
    x = 134,457,554.88/10,503.20
  6. Step 6: Final answer
    x = 12,801.58

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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.