Home / 14,961.24-20,631.60-9,658.80

Finding the Fourth Proportional to 14,961.24, 20,631.60 and 9,658.80

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Solution

The fourth proportional to 14,961.24, 20,631.60 and 9,658.80 is: 13,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.24 : 20,631.60 = 9,658.80 : x
  2. Step 2: Convert to fraction form
    14,961.24/20,631.60 = 9,658.80/x
  3. Step 3: Cross multiply
    14,961.24x = 20,631.60 × 9,658.80
  4. Step 4: Simplify right side
    14,961.24x = 199,276,498.08
  5. Step 5: Solve for x
    x = 199,276,498.08/14,961.24
  6. Step 6: Final answer
    x = 13,319.52

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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.