Home / 13,920.39-20,867.76-4,554.63

Finding the Fourth Proportional to 13,920.39, 20,867.76 and 4,554.63

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Solution

The fourth proportional to 13,920.39, 20,867.76 and 4,554.63 is: 6,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.39 : 20,867.76 = 4,554.63 : x
  2. Step 2: Convert to fraction form
    13,920.39/20,867.76 = 4,554.63/x
  3. Step 3: Cross multiply
    13,920.39x = 20,867.76 × 4,554.63
  4. Step 4: Simplify right side
    13,920.39x = 95,044,925.73
  5. Step 5: Solve for x
    x = 95,044,925.73/13,920.39
  6. Step 6: Final answer
    x = 6,827.75

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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.