Home / 13,016.75-17,953.83-8,985.13

Finding the Fourth Proportional to 13,016.75, 17,953.83 and 8,985.13

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Solution

The fourth proportional to 13,016.75, 17,953.83 and 8,985.13 is: 12,393.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,016.75 : 17,953.83 = 8,985.13 : x
  2. Step 2: Convert to fraction form
    13,016.75/17,953.83 = 8,985.13/x
  3. Step 3: Cross multiply
    13,016.75x = 17,953.83 × 8,985.13
  4. Step 4: Simplify right side
    13,016.75x = 161,317,451.66
  5. Step 5: Solve for x
    x = 161,317,451.66/13,016.75
  6. Step 6: Final answer
    x = 12,393.07

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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.