Home / 9,904.77-13,668.68-5,428.42

Finding the Fourth Proportional to 9,904.77, 13,668.68 and 5,428.42

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Solution

The fourth proportional to 9,904.77, 13,668.68 and 5,428.42 is: 7,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.77 : 13,668.68 = 5,428.42 : x
  2. Step 2: Convert to fraction form
    9,904.77/13,668.68 = 5,428.42/x
  3. Step 3: Cross multiply
    9,904.77x = 13,668.68 × 5,428.42
  4. Step 4: Simplify right side
    9,904.77x = 74,199,267.54
  5. Step 5: Solve for x
    x = 74,199,267.54/9,904.77
  6. Step 6: Final answer
    x = 7,491.27

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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.