Home / 9,564.49-13,199.79-5,315.95

Finding the Fourth Proportional to 9,564.49, 13,199.79 and 5,315.95

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Solution

The fourth proportional to 9,564.49, 13,199.79 and 5,315.95 is: 7,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,564.49 : 13,199.79 = 5,315.95 : x
  2. Step 2: Convert to fraction form
    9,564.49/13,199.79 = 5,315.95/x
  3. Step 3: Cross multiply
    9,564.49x = 13,199.79 × 5,315.95
  4. Step 4: Simplify right side
    9,564.49x = 70,169,423.65
  5. Step 5: Solve for x
    x = 70,169,423.65/9,564.49
  6. Step 6: Final answer
    x = 7,336.45

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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.