Home / 17,627.60-26,419.80-7,756.40

Finding the Fourth Proportional to 17,627.60, 26,419.80 and 7,756.40

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Solution

The fourth proportional to 17,627.60, 26,419.80 and 7,756.40 is: 11,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,627.60 : 26,419.80 = 7,756.40 : x
  2. Step 2: Convert to fraction form
    17,627.60/26,419.80 = 7,756.40/x
  3. Step 3: Cross multiply
    17,627.60x = 26,419.80 × 7,756.40
  4. Step 4: Simplify right side
    17,627.60x = 204,922,536.72
  5. Step 5: Solve for x
    x = 204,922,536.72/17,627.60
  6. Step 6: Final answer
    x = 11,625.10

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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.