Home / 9,428.84-13,012.08-5,449.60

Finding the Fourth Proportional to 9,428.84, 13,012.08 and 5,449.60

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Solution

The fourth proportional to 9,428.84, 13,012.08 and 5,449.60 is: 7,520.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.84 : 13,012.08 = 5,449.60 : x
  2. Step 2: Convert to fraction form
    9,428.84/13,012.08 = 5,449.60/x
  3. Step 3: Cross multiply
    9,428.84x = 13,012.08 × 5,449.60
  4. Step 4: Simplify right side
    9,428.84x = 70,910,631.17
  5. Step 5: Solve for x
    x = 70,910,631.17/9,428.84
  6. Step 6: Final answer
    x = 7,520.61

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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.