Home / 7,787.57-11,681.30-1,944.18

Finding the Fourth Proportional to 7,787.57, 11,681.30 and 1,944.18

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Solution

The fourth proportional to 7,787.57, 11,681.30 and 1,944.18 is: 2,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.57 : 11,681.30 = 1,944.18 : x
  2. Step 2: Convert to fraction form
    7,787.57/11,681.30 = 1,944.18/x
  3. Step 3: Cross multiply
    7,787.57x = 11,681.30 × 1,944.18
  4. Step 4: Simplify right side
    7,787.57x = 22,710,554.69
  5. Step 5: Solve for x
    x = 22,710,554.69/7,787.57
  6. Step 6: Final answer
    x = 2,916.26

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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.