Home / 13,488.84-18,617.03-8,457.43

Finding the Fourth Proportional to 13,488.84, 18,617.03 and 8,457.43

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Solution

The fourth proportional to 13,488.84, 18,617.03 and 8,457.43 is: 11,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.84 : 18,617.03 = 8,457.43 : x
  2. Step 2: Convert to fraction form
    13,488.84/18,617.03 = 8,457.43/x
  3. Step 3: Cross multiply
    13,488.84x = 18,617.03 × 8,457.43
  4. Step 4: Simplify right side
    13,488.84x = 157,452,228.03
  5. Step 5: Solve for x
    x = 157,452,228.03/13,488.84
  6. Step 6: Final answer
    x = 11,672.78

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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.