Home / 9,742.88-13,442.08-5,765.36

Finding the Fourth Proportional to 9,742.88, 13,442.08 and 5,765.36

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Solution

The fourth proportional to 9,742.88, 13,442.08 and 5,765.36 is: 7,954.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,742.88 : 13,442.08 = 5,765.36 : x
  2. Step 2: Convert to fraction form
    9,742.88/13,442.08 = 5,765.36/x
  3. Step 3: Cross multiply
    9,742.88x = 13,442.08 × 5,765.36
  4. Step 4: Simplify right side
    9,742.88x = 77,498,430.35
  5. Step 5: Solve for x
    x = 77,498,430.35/9,742.88
  6. Step 6: Final answer
    x = 7,954.37

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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.