Home / 12,013.93-18,021.81-3,248.72

Finding the Fourth Proportional to 12,013.93, 18,021.81 and 3,248.72

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Solution

The fourth proportional to 12,013.93, 18,021.81 and 3,248.72 is: 4,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.93 : 18,021.81 = 3,248.72 : x
  2. Step 2: Convert to fraction form
    12,013.93/18,021.81 = 3,248.72/x
  3. Step 3: Cross multiply
    12,013.93x = 18,021.81 × 3,248.72
  4. Step 4: Simplify right side
    12,013.93x = 58,547,708.23
  5. Step 5: Solve for x
    x = 58,547,708.23/12,013.93
  6. Step 6: Final answer
    x = 4,873.32

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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.