Home / 13,457.16-18,551.40-8,912.24

Finding the Fourth Proportional to 13,457.16, 18,551.40 and 8,912.24

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Solution

The fourth proportional to 13,457.16, 18,551.40 and 8,912.24 is: 12,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.16 : 18,551.40 = 8,912.24 : x
  2. Step 2: Convert to fraction form
    13,457.16/18,551.40 = 8,912.24/x
  3. Step 3: Cross multiply
    13,457.16x = 18,551.40 × 8,912.24
  4. Step 4: Simplify right side
    13,457.16x = 165,334,529.14
  5. Step 5: Solve for x
    x = 165,334,529.14/13,457.16
  6. Step 6: Final answer
    x = 12,285.99

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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.