Home / 13,372.79-18,457.55-8,896.73

Finding the Fourth Proportional to 13,372.79, 18,457.55 and 8,896.73

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Solution

The fourth proportional to 13,372.79, 18,457.55 and 8,896.73 is: 12,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.79 : 18,457.55 = 8,896.73 : x
  2. Step 2: Convert to fraction form
    13,372.79/18,457.55 = 8,896.73/x
  3. Step 3: Cross multiply
    13,372.79x = 18,457.55 × 8,896.73
  4. Step 4: Simplify right side
    13,372.79x = 164,211,838.81
  5. Step 5: Solve for x
    x = 164,211,838.81/13,372.79
  6. Step 6: Final answer
    x = 12,279.55

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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.