Home / 12,326.72-18,492.12-4,931.44

Finding the Fourth Proportional to 12,326.72, 18,492.12 and 4,931.44

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Solution

The fourth proportional to 12,326.72, 18,492.12 and 4,931.44 is: 7,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.72 : 18,492.12 = 4,931.44 : x
  2. Step 2: Convert to fraction form
    12,326.72/18,492.12 = 4,931.44/x
  3. Step 3: Cross multiply
    12,326.72x = 18,492.12 × 4,931.44
  4. Step 4: Simplify right side
    12,326.72x = 91,192,780.25
  5. Step 5: Solve for x
    x = 91,192,780.25/12,326.72
  6. Step 6: Final answer
    x = 7,397.98

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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.