Home / 12,015.81-18,023.67-3,250.08

Finding the Fourth Proportional to 12,015.81, 18,023.67 and 3,250.08

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Solution

The fourth proportional to 12,015.81, 18,023.67 and 3,250.08 is: 4,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.81 : 18,023.67 = 3,250.08 : x
  2. Step 2: Convert to fraction form
    12,015.81/18,023.67 = 3,250.08/x
  3. Step 3: Cross multiply
    12,015.81x = 18,023.67 × 3,250.08
  4. Step 4: Simplify right side
    12,015.81x = 58,578,369.39
  5. Step 5: Solve for x
    x = 58,578,369.39/12,015.81
  6. Step 6: Final answer
    x = 4,875.11

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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.