Home / 13,677.16-18,882.69-8,969.64

Finding the Fourth Proportional to 13,677.16, 18,882.69 and 8,969.64

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Solution

The fourth proportional to 13,677.16, 18,882.69 and 8,969.64 is: 12,383.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.16 : 18,882.69 = 8,969.64 : x
  2. Step 2: Convert to fraction form
    13,677.16/18,882.69 = 8,969.64/x
  3. Step 3: Cross multiply
    13,677.16x = 18,882.69 × 8,969.64
  4. Step 4: Simplify right side
    13,677.16x = 169,370,931.53
  5. Step 5: Solve for x
    x = 169,370,931.53/13,677.16
  6. Step 6: Final answer
    x = 12,383.49

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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.