Home / 8,330.90-12,501.15-3,137.30

Finding the Fourth Proportional to 8,330.90, 12,501.15 and 3,137.30

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Solution

The fourth proportional to 8,330.90, 12,501.15 and 3,137.30 is: 4,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.90 : 12,501.15 = 3,137.30 : x
  2. Step 2: Convert to fraction form
    8,330.90/12,501.15 = 3,137.30/x
  3. Step 3: Cross multiply
    8,330.90x = 12,501.15 × 3,137.30
  4. Step 4: Simplify right side
    8,330.90x = 39,219,857.90
  5. Step 5: Solve for x
    x = 39,219,857.90/8,330.90
  6. Step 6: Final answer
    x = 4,707.76

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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.