Home / 14,885.44-20,490.36-12,867.92

Finding the Fourth Proportional to 14,885.44, 20,490.36 and 12,867.92

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Solution

The fourth proportional to 14,885.44, 20,490.36 and 12,867.92 is: 17,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.44 : 20,490.36 = 12,867.92 : x
  2. Step 2: Convert to fraction form
    14,885.44/20,490.36 = 12,867.92/x
  3. Step 3: Cross multiply
    14,885.44x = 20,490.36 × 12,867.92
  4. Step 4: Simplify right side
    14,885.44x = 263,668,313.25
  5. Step 5: Solve for x
    x = 263,668,313.25/14,885.44
  6. Step 6: Final answer
    x = 17,713.17

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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.