Home / 13,705.14-20,557.55-4,345.15

Finding the Fourth Proportional to 13,705.14, 20,557.55 and 4,345.15

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Solution

The fourth proportional to 13,705.14, 20,557.55 and 4,345.15 is: 6,517.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.14 : 20,557.55 = 4,345.15 : x
  2. Step 2: Convert to fraction form
    13,705.14/20,557.55 = 4,345.15/x
  3. Step 3: Cross multiply
    13,705.14x = 20,557.55 × 4,345.15
  4. Step 4: Simplify right side
    13,705.14x = 89,325,638.38
  5. Step 5: Solve for x
    x = 89,325,638.38/13,705.14
  6. Step 6: Final answer
    x = 6,517.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.