Home / 10,485.78-14,454.87-6,708.54

Finding the Fourth Proportional to 10,485.78, 14,454.87 and 6,708.54

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Solution

The fourth proportional to 10,485.78, 14,454.87 and 6,708.54 is: 9,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.78 : 14,454.87 = 6,708.54 : x
  2. Step 2: Convert to fraction form
    10,485.78/14,454.87 = 6,708.54/x
  3. Step 3: Cross multiply
    10,485.78x = 14,454.87 × 6,708.54
  4. Step 4: Simplify right side
    10,485.78x = 96,971,073.59
  5. Step 5: Solve for x
    x = 96,971,073.59/10,485.78
  6. Step 6: Final answer
    x = 9,247.86

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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.