Home / 9,428.06-13,009.74-5,450.45

Finding the Fourth Proportional to 9,428.06, 13,009.74 and 5,450.45

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Solution

The fourth proportional to 9,428.06, 13,009.74 and 5,450.45 is: 7,521.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.06 : 13,009.74 = 5,450.45 : x
  2. Step 2: Convert to fraction form
    9,428.06/13,009.74 = 5,450.45/x
  3. Step 3: Cross multiply
    9,428.06x = 13,009.74 × 5,450.45
  4. Step 4: Simplify right side
    9,428.06x = 70,908,872.33
  5. Step 5: Solve for x
    x = 70,908,872.33/9,428.06
  6. Step 6: Final answer
    x = 7,521.05

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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.