Home / 9,369.14-12,928.68-5,389.48

Finding the Fourth Proportional to 9,369.14, 12,928.68 and 5,389.48

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Solution

The fourth proportional to 9,369.14, 12,928.68 and 5,389.48 is: 7,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.14 : 12,928.68 = 5,389.48 : x
  2. Step 2: Convert to fraction form
    9,369.14/12,928.68 = 5,389.48/x
  3. Step 3: Cross multiply
    9,369.14x = 12,928.68 × 5,389.48
  4. Step 4: Simplify right side
    9,369.14x = 69,678,862.29
  5. Step 5: Solve for x
    x = 69,678,862.29/9,369.14
  6. Step 6: Final answer
    x = 7,437.06

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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.