Home / 9,438.40-14,157.60-8,498.80

Finding the Fourth Proportional to 9,438.40, 14,157.60 and 8,498.80

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Solution

The fourth proportional to 9,438.40, 14,157.60 and 8,498.80 is: 12,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.40 : 14,157.60 = 8,498.80 : x
  2. Step 2: Convert to fraction form
    9,438.40/14,157.60 = 8,498.80/x
  3. Step 3: Cross multiply
    9,438.40x = 14,157.60 × 8,498.80
  4. Step 4: Simplify right side
    9,438.40x = 120,322,610.88
  5. Step 5: Solve for x
    x = 120,322,610.88/9,438.40
  6. Step 6: Final answer
    x = 12,748.20

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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.