Home / 9,904.60-13,668.31-5,428.63

Finding the Fourth Proportional to 9,904.60, 13,668.31 and 5,428.63

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Solution

The fourth proportional to 9,904.60, 13,668.31 and 5,428.63 is: 7,491.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.60 : 13,668.31 = 5,428.63 : x
  2. Step 2: Convert to fraction form
    9,904.60/13,668.31 = 5,428.63/x
  3. Step 3: Cross multiply
    9,904.60x = 13,668.31 × 5,428.63
  4. Step 4: Simplify right side
    9,904.60x = 74,200,197.72
  5. Step 5: Solve for x
    x = 74,200,197.72/9,904.60
  6. Step 6: Final answer
    x = 7,491.49

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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.