Home / 8,331.40-12,501.90-3,137.80

Finding the Fourth Proportional to 8,331.40, 12,501.90 and 3,137.80

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Solution

The fourth proportional to 8,331.40, 12,501.90 and 3,137.80 is: 4,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.40 : 12,501.90 = 3,137.80 : x
  2. Step 2: Convert to fraction form
    8,331.40/12,501.90 = 3,137.80/x
  3. Step 3: Cross multiply
    8,331.40x = 12,501.90 × 3,137.80
  4. Step 4: Simplify right side
    8,331.40x = 39,228,461.82
  5. Step 5: Solve for x
    x = 39,228,461.82/8,331.40
  6. Step 6: Final answer
    x = 4,708.51

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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.