Home / 9,519.12-13,135.48-5,690.00

Finding the Fourth Proportional to 9,519.12, 13,135.48 and 5,690.00

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Solution

The fourth proportional to 9,519.12, 13,135.48 and 5,690.00 is: 7,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.12 : 13,135.48 = 5,690.00 : x
  2. Step 2: Convert to fraction form
    9,519.12/13,135.48 = 5,690.00/x
  3. Step 3: Cross multiply
    9,519.12x = 13,135.48 × 5,690.00
  4. Step 4: Simplify right side
    9,519.12x = 74,740,801.30
  5. Step 5: Solve for x
    x = 74,740,801.30/9,519.12
  6. Step 6: Final answer
    x = 7,851.65

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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.