Home / 16,785.11-25,129.06-12,642.57

Finding the Fourth Proportional to 16,785.11, 25,129.06 and 12,642.57

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Solution

The fourth proportional to 16,785.11, 25,129.06 and 12,642.57 is: 18,927.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.11 : 25,129.06 = 12,642.57 : x
  2. Step 2: Convert to fraction form
    16,785.11/25,129.06 = 12,642.57/x
  3. Step 3: Cross multiply
    16,785.11x = 25,129.06 × 12,642.57
  4. Step 4: Simplify right side
    16,785.11x = 317,695,900.08
  5. Step 5: Solve for x
    x = 317,695,900.08/16,785.11
  6. Step 6: Final answer
    x = 18,927.25

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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.