Home / 12,995.20-19,492.80-7,465.60

Finding the Fourth Proportional to 12,995.20, 19,492.80 and 7,465.60

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Solution

The fourth proportional to 12,995.20, 19,492.80 and 7,465.60 is: 11,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.20 : 19,492.80 = 7,465.60 : x
  2. Step 2: Convert to fraction form
    12,995.20/19,492.80 = 7,465.60/x
  3. Step 3: Cross multiply
    12,995.20x = 19,492.80 × 7,465.60
  4. Step 4: Simplify right side
    12,995.20x = 145,525,447.68
  5. Step 5: Solve for x
    x = 145,525,447.68/12,995.20
  6. Step 6: Final answer
    x = 11,198.40

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Similar ratio
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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.