Home / 8,715.48-12,027.66-4,938.60

Finding the Fourth Proportional to 8,715.48, 12,027.66 and 4,938.60

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Solution

The fourth proportional to 8,715.48, 12,027.66 and 4,938.60 is: 6,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.48 : 12,027.66 = 4,938.60 : x
  2. Step 2: Convert to fraction form
    8,715.48/12,027.66 = 4,938.60/x
  3. Step 3: Cross multiply
    8,715.48x = 12,027.66 × 4,938.60
  4. Step 4: Simplify right side
    8,715.48x = 59,399,801.68
  5. Step 5: Solve for x
    x = 59,399,801.68/8,715.48
  6. Step 6: Final answer
    x = 6,815.44

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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.