Home / 13,723.60-20,561.10-12,848.80

Finding the Fourth Proportional to 13,723.60, 20,561.10 and 12,848.80

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Solution

The fourth proportional to 13,723.60, 20,561.10 and 12,848.80 is: 19,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.60 : 20,561.10 = 12,848.80 : x
  2. Step 2: Convert to fraction form
    13,723.60/20,561.10 = 12,848.80/x
  3. Step 3: Cross multiply
    13,723.60x = 20,561.10 × 12,848.80
  4. Step 4: Simplify right side
    13,723.60x = 264,185,461.68
  5. Step 5: Solve for x
    x = 264,185,461.68/13,723.60
  6. Step 6: Final answer
    x = 19,250.45

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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.