Home / 14,905.49-20,569.16-8,191.12

Finding the Fourth Proportional to 14,905.49, 20,569.16 and 8,191.12

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Solution

The fourth proportional to 14,905.49, 20,569.16 and 8,191.12 is: 11,303.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.49 : 20,569.16 = 8,191.12 : x
  2. Step 2: Convert to fraction form
    14,905.49/20,569.16 = 8,191.12/x
  3. Step 3: Cross multiply
    14,905.49x = 20,569.16 × 8,191.12
  4. Step 4: Simplify right side
    14,905.49x = 168,484,473.33
  5. Step 5: Solve for x
    x = 168,484,473.33/14,905.49
  6. Step 6: Final answer
    x = 11,303.52

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Double scale
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Similar ratio
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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.