Home / 10,135.07-13,986.11-5,658.69

Finding the Fourth Proportional to 10,135.07, 13,986.11 and 5,658.69

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Solution

The fourth proportional to 10,135.07, 13,986.11 and 5,658.69 is: 7,808.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.07 : 13,986.11 = 5,658.69 : x
  2. Step 2: Convert to fraction form
    10,135.07/13,986.11 = 5,658.69/x
  3. Step 3: Cross multiply
    10,135.07x = 13,986.11 × 5,658.69
  4. Step 4: Simplify right side
    10,135.07x = 79,143,060.80
  5. Step 5: Solve for x
    x = 79,143,060.80/10,135.07
  6. Step 6: Final answer
    x = 7,808.84

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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.