Home / 13,554.68-18,705.56-7,586.90

Finding the Fourth Proportional to 13,554.68, 18,705.56 and 7,586.90

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Solution

The fourth proportional to 13,554.68, 18,705.56 and 7,586.90 is: 10,469.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.68 : 18,705.56 = 7,586.90 : x
  2. Step 2: Convert to fraction form
    13,554.68/18,705.56 = 7,586.90/x
  3. Step 3: Cross multiply
    13,554.68x = 18,705.56 × 7,586.90
  4. Step 4: Simplify right side
    13,554.68x = 141,917,213.16
  5. Step 5: Solve for x
    x = 141,917,213.16/13,554.68
  6. Step 6: Final answer
    x = 10,469.98

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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.