Home / 13,053.06-18,019.26-8,753.40

Finding the Fourth Proportional to 13,053.06, 18,019.26 and 8,753.40

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Solution

The fourth proportional to 13,053.06, 18,019.26 and 8,753.40 is: 12,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.06 : 18,019.26 = 8,753.40 : x
  2. Step 2: Convert to fraction form
    13,053.06/18,019.26 = 8,753.40/x
  3. Step 3: Cross multiply
    13,053.06x = 18,019.26 × 8,753.40
  4. Step 4: Simplify right side
    13,053.06x = 157,729,790.48
  5. Step 5: Solve for x
    x = 157,729,790.48/13,053.06
  6. Step 6: Final answer
    x = 12,083.74

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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.