Home / 17,748.40-26,622.60-7,877.20

Finding the Fourth Proportional to 17,748.40, 26,622.60 and 7,877.20

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Solution

The fourth proportional to 17,748.40, 26,622.60 and 7,877.20 is: 11,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,748.40 : 26,622.60 = 7,877.20 : x
  2. Step 2: Convert to fraction form
    17,748.40/26,622.60 = 7,877.20/x
  3. Step 3: Cross multiply
    17,748.40x = 26,622.60 × 7,877.20
  4. Step 4: Simplify right side
    17,748.40x = 209,711,544.72
  5. Step 5: Solve for x
    x = 209,711,544.72/17,748.40
  6. Step 6: Final answer
    x = 11,815.80

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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.