Home / 14,441.13-21,655.21-6,645.69

Finding the Fourth Proportional to 14,441.13, 21,655.21 and 6,645.69

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Solution

The fourth proportional to 14,441.13, 21,655.21 and 6,645.69 is: 9,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,441.13 : 21,655.21 = 6,645.69 : x
  2. Step 2: Convert to fraction form
    14,441.13/21,655.21 = 6,645.69/x
  3. Step 3: Cross multiply
    14,441.13x = 21,655.21 × 6,645.69
  4. Step 4: Simplify right side
    14,441.13x = 143,913,812.54
  5. Step 5: Solve for x
    x = 143,913,812.54/14,441.13
  6. Step 6: Final answer
    x = 9,965.55

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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.