Home / 13,645.16-20,466.84-3,649.76

Finding the Fourth Proportional to 13,645.16, 20,466.84 and 3,649.76

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Solution

The fourth proportional to 13,645.16, 20,466.84 and 3,649.76 is: 5,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.16 : 20,466.84 = 3,649.76 : x
  2. Step 2: Convert to fraction form
    13,645.16/20,466.84 = 3,649.76/x
  3. Step 3: Cross multiply
    13,645.16x = 20,466.84 × 3,649.76
  4. Step 4: Simplify right side
    13,645.16x = 74,699,053.96
  5. Step 5: Solve for x
    x = 74,699,053.96/13,645.16
  6. Step 6: Final answer
    x = 5,474.40

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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.