Home / 9,429.84-13,009.38-5,450.22

Finding the Fourth Proportional to 9,429.84, 13,009.38 and 5,450.22

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Solution

The fourth proportional to 9,429.84, 13,009.38 and 5,450.22 is: 7,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.84 : 13,009.38 = 5,450.22 : x
  2. Step 2: Convert to fraction form
    9,429.84/13,009.38 = 5,450.22/x
  3. Step 3: Cross multiply
    9,429.84x = 13,009.38 × 5,450.22
  4. Step 4: Simplify right side
    9,429.84x = 70,903,983.06
  5. Step 5: Solve for x
    x = 70,903,983.06/9,429.84
  6. Step 6: Final answer
    x = 7,519.11

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Double scale
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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.