Home / 12,501.40-18,753.09-4,181.46

Finding the Fourth Proportional to 12,501.40, 18,753.09 and 4,181.46

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Solution

The fourth proportional to 12,501.40, 18,753.09 and 4,181.46 is: 6,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.40 : 18,753.09 = 4,181.46 : x
  2. Step 2: Convert to fraction form
    12,501.40/18,753.09 = 4,181.46/x
  3. Step 3: Cross multiply
    12,501.40x = 18,753.09 × 4,181.46
  4. Step 4: Simplify right side
    12,501.40x = 78,415,209.71
  5. Step 5: Solve for x
    x = 78,415,209.71/12,501.40
  6. Step 6: Final answer
    x = 6,272.52

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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.