Home / 13,349.17-18,421.32-8,313.04

Finding the Fourth Proportional to 13,349.17, 18,421.32 and 8,313.04

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Solution

The fourth proportional to 13,349.17, 18,421.32 and 8,313.04 is: 11,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.17 : 18,421.32 = 8,313.04 : x
  2. Step 2: Convert to fraction form
    13,349.17/18,421.32 = 8,313.04/x
  3. Step 3: Cross multiply
    13,349.17x = 18,421.32 × 8,313.04
  4. Step 4: Simplify right side
    13,349.17x = 153,137,170.01
  5. Step 5: Solve for x
    x = 153,137,170.01/13,349.17
  6. Step 6: Final answer
    x = 11,471.66

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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.