Home / 13,386.87-18,476.06-12,796.29

Finding the Fourth Proportional to 13,386.87, 18,476.06 and 12,796.29

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Solution

The fourth proportional to 13,386.87, 18,476.06 and 12,796.29 is: 17,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.87 : 18,476.06 = 12,796.29 : x
  2. Step 2: Convert to fraction form
    13,386.87/18,476.06 = 12,796.29/x
  3. Step 3: Cross multiply
    13,386.87x = 18,476.06 × 12,796.29
  4. Step 4: Simplify right side
    13,386.87x = 236,424,957.84
  5. Step 5: Solve for x
    x = 236,424,957.84/13,386.87
  6. Step 6: Final answer
    x = 17,660.96

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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.