Home / 13,351.41-18,426.33-7,686.36

Finding the Fourth Proportional to 13,351.41, 18,426.33 and 7,686.36

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Solution

The fourth proportional to 13,351.41, 18,426.33 and 7,686.36 is: 10,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.41 : 18,426.33 = 7,686.36 : x
  2. Step 2: Convert to fraction form
    13,351.41/18,426.33 = 7,686.36/x
  3. Step 3: Cross multiply
    13,351.41x = 18,426.33 × 7,686.36
  4. Step 4: Simplify right side
    13,351.41x = 141,631,405.86
  5. Step 5: Solve for x
    x = 141,631,405.86/13,351.41
  6. Step 6: Final answer
    x = 10,607.97

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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.