Home / 14,309.84-19,767.88-13,618.64

Finding the Fourth Proportional to 14,309.84, 19,767.88 and 13,618.64

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Solution

The fourth proportional to 14,309.84, 19,767.88 and 13,618.64 is: 18,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.84 : 19,767.88 = 13,618.64 : x
  2. Step 2: Convert to fraction form
    14,309.84/19,767.88 = 13,618.64/x
  3. Step 3: Cross multiply
    14,309.84x = 19,767.88 × 13,618.64
  4. Step 4: Simplify right side
    14,309.84x = 269,211,641.28
  5. Step 5: Solve for x
    x = 269,211,641.28/14,309.84
  6. Step 6: Final answer
    x = 18,813.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.