Home / 13,093.40-18,071.48-7,787.18

Finding the Fourth Proportional to 13,093.40, 18,071.48 and 7,787.18

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Solution

The fourth proportional to 13,093.40, 18,071.48 and 7,787.18 is: 10,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.40 : 18,071.48 = 7,787.18 : x
  2. Step 2: Convert to fraction form
    13,093.40/18,071.48 = 7,787.18/x
  3. Step 3: Cross multiply
    13,093.40x = 18,071.48 × 7,787.18
  4. Step 4: Simplify right side
    13,093.40x = 140,725,867.63
  5. Step 5: Solve for x
    x = 140,725,867.63/13,093.40
  6. Step 6: Final answer
    x = 10,747.85

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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.