Home / 19,559.40-29,339.10-7,866.60

Finding the Fourth Proportional to 19,559.40, 29,339.10 and 7,866.60

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Solution

The fourth proportional to 19,559.40, 29,339.10 and 7,866.60 is: 11,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.40 : 29,339.10 = 7,866.60 : x
  2. Step 2: Convert to fraction form
    19,559.40/29,339.10 = 7,866.60/x
  3. Step 3: Cross multiply
    19,559.40x = 29,339.10 × 7,866.60
  4. Step 4: Simplify right side
    19,559.40x = 230,798,964.06
  5. Step 5: Solve for x
    x = 230,798,964.06/19,559.40
  6. Step 6: Final answer
    x = 11,799.90

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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.