Home / 10,134.98-13,986.20-5,658.48

Finding the Fourth Proportional to 10,134.98, 13,986.20 and 5,658.48

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Solution

The fourth proportional to 10,134.98, 13,986.20 and 5,658.48 is: 7,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.98 : 13,986.20 = 5,658.48 : x
  2. Step 2: Convert to fraction form
    10,134.98/13,986.20 = 5,658.48/x
  3. Step 3: Cross multiply
    10,134.98x = 13,986.20 × 5,658.48
  4. Step 4: Simplify right side
    10,134.98x = 79,140,632.98
  5. Step 5: Solve for x
    x = 79,140,632.98/10,134.98
  6. Step 6: Final answer
    x = 7,808.66

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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.