Home / 13,561.76-20,346.30-12,260.49

Finding the Fourth Proportional to 13,561.76, 20,346.30 and 12,260.49

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Solution

The fourth proportional to 13,561.76, 20,346.30 and 12,260.49 is: 18,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.76 : 20,346.30 = 12,260.49 : x
  2. Step 2: Convert to fraction form
    13,561.76/20,346.30 = 12,260.49/x
  3. Step 3: Cross multiply
    13,561.76x = 20,346.30 × 12,260.49
  4. Step 4: Simplify right side
    13,561.76x = 249,455,607.69
  5. Step 5: Solve for x
    x = 249,455,607.69/13,561.76
  6. Step 6: Final answer
    x = 18,394.05

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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.