Home / 13,066.80-19,581.36-8,372.16

Finding the Fourth Proportional to 13,066.80, 19,581.36 and 8,372.16

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Solution

The fourth proportional to 13,066.80, 19,581.36 and 8,372.16 is: 12,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.80 : 19,581.36 = 8,372.16 : x
  2. Step 2: Convert to fraction form
    13,066.80/19,581.36 = 8,372.16/x
  3. Step 3: Cross multiply
    13,066.80x = 19,581.36 × 8,372.16
  4. Step 4: Simplify right side
    13,066.80x = 163,938,278.94
  5. Step 5: Solve for x
    x = 163,938,278.94/13,066.80
  6. Step 6: Final answer
    x = 12,546.17

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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.