Home / 10,145.73-13,984.38-6,787.35

Finding the Fourth Proportional to 10,145.73, 13,984.38 and 6,787.35

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Solution

The fourth proportional to 10,145.73, 13,984.38 and 6,787.35 is: 9,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.73 : 13,984.38 = 6,787.35 : x
  2. Step 2: Convert to fraction form
    10,145.73/13,984.38 = 6,787.35/x
  3. Step 3: Cross multiply
    10,145.73x = 13,984.38 × 6,787.35
  4. Step 4: Simplify right side
    10,145.73x = 94,916,881.59
  5. Step 5: Solve for x
    x = 94,916,881.59/10,145.73
  6. Step 6: Final answer
    x = 9,355.35

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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.