Home / 13,568.82-18,705.70-9,977.46

Finding the Fourth Proportional to 13,568.82, 18,705.70 and 9,977.46

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Solution

The fourth proportional to 13,568.82, 18,705.70 and 9,977.46 is: 13,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.82 : 18,705.70 = 9,977.46 : x
  2. Step 2: Convert to fraction form
    13,568.82/18,705.70 = 9,977.46/x
  3. Step 3: Cross multiply
    13,568.82x = 18,705.70 × 9,977.46
  4. Step 4: Simplify right side
    13,568.82x = 186,635,373.52
  5. Step 5: Solve for x
    x = 186,635,373.52/13,568.82
  6. Step 6: Final answer
    x = 13,754.72

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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.