Home / 9,115.48-13,663.62-4,728.28

Finding the Fourth Proportional to 9,115.48, 13,663.62 and 4,728.28

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Solution

The fourth proportional to 9,115.48, 13,663.62 and 4,728.28 is: 7,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.48 : 13,663.62 = 4,728.28 : x
  2. Step 2: Convert to fraction form
    9,115.48/13,663.62 = 4,728.28/x
  3. Step 3: Cross multiply
    9,115.48x = 13,663.62 × 4,728.28
  4. Step 4: Simplify right side
    9,115.48x = 64,605,421.17
  5. Step 5: Solve for x
    x = 64,605,421.17/9,115.48
  6. Step 6: Final answer
    x = 7,087.44

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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.