Home / 8,798.28-12,140.44-5,658.72

Finding the Fourth Proportional to 8,798.28, 12,140.44 and 5,658.72

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Solution

The fourth proportional to 8,798.28, 12,140.44 and 5,658.72 is: 7,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.28 : 12,140.44 = 5,658.72 : x
  2. Step 2: Convert to fraction form
    8,798.28/12,140.44 = 5,658.72/x
  3. Step 3: Cross multiply
    8,798.28x = 12,140.44 × 5,658.72
  4. Step 4: Simplify right side
    8,798.28x = 68,699,350.64
  5. Step 5: Solve for x
    x = 68,699,350.64/8,798.28
  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.