Home / 13,785.20-19,023.46-7,497.58

Finding the Fourth Proportional to 13,785.20, 19,023.46 and 7,497.58

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Solution

The fourth proportional to 13,785.20, 19,023.46 and 7,497.58 is: 10,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.20 : 19,023.46 = 7,497.58 : x
  2. Step 2: Convert to fraction form
    13,785.20/19,023.46 = 7,497.58/x
  3. Step 3: Cross multiply
    13,785.20x = 19,023.46 × 7,497.58
  4. Step 4: Simplify right side
    13,785.20x = 142,629,913.23
  5. Step 5: Solve for x
    x = 142,629,913.23/13,785.20
  6. Step 6: Final answer
    x = 10,346.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.