Home / 12,741.10-17,586.40-7,705.34

Finding the Fourth Proportional to 12,741.10, 17,586.40 and 7,705.34

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Solution

The fourth proportional to 12,741.10, 17,586.40 and 7,705.34 is: 10,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.10 : 17,586.40 = 7,705.34 : x
  2. Step 2: Convert to fraction form
    12,741.10/17,586.40 = 7,705.34/x
  3. Step 3: Cross multiply
    12,741.10x = 17,586.40 × 7,705.34
  4. Step 4: Simplify right side
    12,741.10x = 135,509,191.38
  5. Step 5: Solve for x
    x = 135,509,191.38/12,741.10
  6. Step 6: Final answer
    x = 10,635.60

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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.