Home / 13,245.12-19,862.47-4,809.63

Finding the Fourth Proportional to 13,245.12, 19,862.47 and 4,809.63

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Solution

The fourth proportional to 13,245.12, 19,862.47 and 4,809.63 is: 7,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.12 : 19,862.47 = 4,809.63 : x
  2. Step 2: Convert to fraction form
    13,245.12/19,862.47 = 4,809.63/x
  3. Step 3: Cross multiply
    13,245.12x = 19,862.47 × 4,809.63
  4. Step 4: Simplify right side
    13,245.12x = 95,531,073.30
  5. Step 5: Solve for x
    x = 95,531,073.30/13,245.12
  6. Step 6: Final answer
    x = 7,212.55

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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.