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Finding the Fourth Proportional to 7,875.73, 11,813.29 and 1,952.63

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Solution

The fourth proportional to 7,875.73, 11,813.29 and 1,952.63 is: 2,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.73 : 11,813.29 = 1,952.63 : x
  2. Step 2: Convert to fraction form
    7,875.73/11,813.29 = 1,952.63/x
  3. Step 3: Cross multiply
    7,875.73x = 11,813.29 × 1,952.63
  4. Step 4: Simplify right side
    7,875.73x = 23,066,984.45
  5. Step 5: Solve for x
    x = 23,066,984.45/7,875.73
  6. Step 6: Final answer
    x = 2,928.87

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.