Home / 9,904.95-13,668.94-5,428.61

Finding the Fourth Proportional to 9,904.95, 13,668.94 and 5,428.61

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Solution

The fourth proportional to 9,904.95, 13,668.94 and 5,428.61 is: 7,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.95 : 13,668.94 = 5,428.61 : x
  2. Step 2: Convert to fraction form
    9,904.95/13,668.94 = 5,428.61/x
  3. Step 3: Cross multiply
    9,904.95x = 13,668.94 × 5,428.61
  4. Step 4: Simplify right side
    9,904.95x = 74,203,344.25
  5. Step 5: Solve for x
    x = 74,203,344.25/9,904.95
  6. Step 6: Final answer
    x = 7,491.54

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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.