Home / 7,039.38-10,557.63-4,115.46

Finding the Fourth Proportional to 7,039.38, 10,557.63 and 4,115.46

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Solution

The fourth proportional to 7,039.38, 10,557.63 and 4,115.46 is: 6,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.38 : 10,557.63 = 4,115.46 : x
  2. Step 2: Convert to fraction form
    7,039.38/10,557.63 = 4,115.46/x
  3. Step 3: Cross multiply
    7,039.38x = 10,557.63 × 4,115.46
  4. Step 4: Simplify right side
    7,039.38x = 43,449,503.96
  5. Step 5: Solve for x
    x = 43,449,503.96/7,039.38
  6. Step 6: Final answer
    x = 6,172.35

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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.