Home / 12,580.93-18,854.36-4,785.49

Finding the Fourth Proportional to 12,580.93, 18,854.36 and 4,785.49

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Solution

The fourth proportional to 12,580.93, 18,854.36 and 4,785.49 is: 7,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.93 : 18,854.36 = 4,785.49 : x
  2. Step 2: Convert to fraction form
    12,580.93/18,854.36 = 4,785.49/x
  3. Step 3: Cross multiply
    12,580.93x = 18,854.36 × 4,785.49
  4. Step 4: Simplify right side
    12,580.93x = 90,227,351.24
  5. Step 5: Solve for x
    x = 90,227,351.24/12,580.93
  6. Step 6: Final answer
    x = 7,171.76

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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.