Home / 13,407.66-18,496.35-8,368.62

Finding the Fourth Proportional to 13,407.66, 18,496.35 and 8,368.62

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Solution

The fourth proportional to 13,407.66, 18,496.35 and 8,368.62 is: 11,544.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.66 : 18,496.35 = 8,368.62 : x
  2. Step 2: Convert to fraction form
    13,407.66/18,496.35 = 8,368.62/x
  3. Step 3: Cross multiply
    13,407.66x = 18,496.35 × 8,368.62
  4. Step 4: Simplify right side
    13,407.66x = 154,788,924.54
  5. Step 5: Solve for x
    x = 154,788,924.54/13,407.66
  6. Step 6: Final answer
    x = 11,544.81

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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.