Home / 9,904.55-13,668.60-5,428.31

Finding the Fourth Proportional to 9,904.55, 13,668.60 and 5,428.31

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Solution

The fourth proportional to 9,904.55, 13,668.60 and 5,428.31 is: 7,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.55 : 13,668.60 = 5,428.31 : x
  2. Step 2: Convert to fraction form
    9,904.55/13,668.60 = 5,428.31/x
  3. Step 3: Cross multiply
    9,904.55x = 13,668.60 × 5,428.31
  4. Step 4: Simplify right side
    9,904.55x = 74,197,329.72
  5. Step 5: Solve for x
    x = 74,197,329.72/9,904.55
  6. Step 6: Final answer
    x = 7,491.24

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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.