Home / 10,135.28-13,984.98-5,658.86

Finding the Fourth Proportional to 10,135.28, 13,984.98 and 5,658.86

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Solution

The fourth proportional to 10,135.28, 13,984.98 and 5,658.86 is: 7,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.28 : 13,984.98 = 5,658.86 : x
  2. Step 2: Convert to fraction form
    10,135.28/13,984.98 = 5,658.86/x
  3. Step 3: Cross multiply
    10,135.28x = 13,984.98 × 5,658.86
  4. Step 4: Simplify right side
    10,135.28x = 79,139,043.92
  5. Step 5: Solve for x
    x = 79,139,043.92/10,135.28
  6. Step 6: Final answer
    x = 7,808.27

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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.