Home / 13,983.75-20,984.48-12,670.19

Finding the Fourth Proportional to 13,983.75, 20,984.48 and 12,670.19

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Solution

The fourth proportional to 13,983.75, 20,984.48 and 12,670.19 is: 19,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.75 : 20,984.48 = 12,670.19 : x
  2. Step 2: Convert to fraction form
    13,983.75/20,984.48 = 12,670.19/x
  3. Step 3: Cross multiply
    13,983.75x = 20,984.48 × 12,670.19
  4. Step 4: Simplify right side
    13,983.75x = 265,877,306.58
  5. Step 5: Solve for x
    x = 265,877,306.58/13,983.75
  6. Step 6: Final answer
    x = 19,013.30

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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.