Home / 13,839.72-20,652.45-12,363

Finding the Fourth Proportional to 13,839.72, 20,652.45 and 12,363

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Solution

The fourth proportional to 13,839.72, 20,652.45 and 12,363 is: 18,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.72 : 20,652.45 = 12,363 : x
  2. Step 2: Convert to fraction form
    13,839.72/20,652.45 = 12,363/x
  3. Step 3: Cross multiply
    13,839.72x = 20,652.45 × 12,363
  4. Step 4: Simplify right side
    13,839.72x = 255,326,239.35
  5. Step 5: Solve for x
    x = 255,326,239.35/13,839.72
  6. Step 6: Final answer
    x = 18,448.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.