Home / 9,904.56-13,668.21-5,428.59

Finding the Fourth Proportional to 9,904.56, 13,668.21 and 5,428.59

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Solution

The fourth proportional to 9,904.56, 13,668.21 and 5,428.59 is: 7,491.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.56 : 13,668.21 = 5,428.59 : x
  2. Step 2: Convert to fraction form
    9,904.56/13,668.21 = 5,428.59/x
  3. Step 3: Cross multiply
    9,904.56x = 13,668.21 × 5,428.59
  4. Step 4: Simplify right side
    9,904.56x = 74,199,108.12
  5. Step 5: Solve for x
    x = 74,199,108.12/9,904.56
  6. Step 6: Final answer
    x = 7,491.41

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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.