Home / 9,428.07-13,009.74-5,450.46

Finding the Fourth Proportional to 9,428.07, 13,009.74 and 5,450.46

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Solution

The fourth proportional to 9,428.07, 13,009.74 and 5,450.46 is: 7,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.07 : 13,009.74 = 5,450.46 : x
  2. Step 2: Convert to fraction form
    9,428.07/13,009.74 = 5,450.46/x
  3. Step 3: Cross multiply
    9,428.07x = 13,009.74 × 5,450.46
  4. Step 4: Simplify right side
    9,428.07x = 70,909,067.48
  5. Step 5: Solve for x
    x = 70,909,067.48/9,428.07
  6. Step 6: Final answer
    x = 7,521.06

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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.