Home / 19,085.12-28,601.76-9,857.60

Finding the Fourth Proportional to 19,085.12, 28,601.76 and 9,857.60

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Solution

The fourth proportional to 19,085.12, 28,601.76 and 9,857.60 is: 14,773.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.12 : 28,601.76 = 9,857.60 : x
  2. Step 2: Convert to fraction form
    19,085.12/28,601.76 = 9,857.60/x
  3. Step 3: Cross multiply
    19,085.12x = 28,601.76 × 9,857.60
  4. Step 4: Simplify right side
    19,085.12x = 281,944,709.38
  5. Step 5: Solve for x
    x = 281,944,709.38/19,085.12
  6. Step 6: Final answer
    x = 14,773.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.