Home / 13,765.48-18,996.66-8,457.24

Finding the Fourth Proportional to 13,765.48, 18,996.66 and 8,457.24

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Solution

The fourth proportional to 13,765.48, 18,996.66 and 8,457.24 is: 11,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.48 : 18,996.66 = 8,457.24 : x
  2. Step 2: Convert to fraction form
    13,765.48/18,996.66 = 8,457.24/x
  3. Step 3: Cross multiply
    13,765.48x = 18,996.66 × 8,457.24
  4. Step 4: Simplify right side
    13,765.48x = 160,659,312.82
  5. Step 5: Solve for x
    x = 160,659,312.82/13,765.48
  6. Step 6: Final answer
    x = 11,671.17

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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.