Home / 7,678.24-11,461.28-6,589.60

Finding the Fourth Proportional to 7,678.24, 11,461.28 and 6,589.60

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Solution

The fourth proportional to 7,678.24, 11,461.28 and 6,589.60 is: 9,836.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.24 : 11,461.28 = 6,589.60 : x
  2. Step 2: Convert to fraction form
    7,678.24/11,461.28 = 6,589.60/x
  3. Step 3: Cross multiply
    7,678.24x = 11,461.28 × 6,589.60
  4. Step 4: Simplify right side
    7,678.24x = 75,525,250.69
  5. Step 5: Solve for x
    x = 75,525,250.69/7,678.24
  6. Step 6: Final answer
    x = 9,836.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.