Home / 8,715.96-12,025.08-4,938.72

Finding the Fourth Proportional to 8,715.96, 12,025.08 and 4,938.72

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Solution

The fourth proportional to 8,715.96, 12,025.08 and 4,938.72 is: 6,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.96 : 12,025.08 = 4,938.72 : x
  2. Step 2: Convert to fraction form
    8,715.96/12,025.08 = 4,938.72/x
  3. Step 3: Cross multiply
    8,715.96x = 12,025.08 × 4,938.72
  4. Step 4: Simplify right side
    8,715.96x = 59,388,503.10
  5. Step 5: Solve for x
    x = 59,388,503.10/8,715.96
  6. Step 6: Final answer
    x = 6,813.76

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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.