Home / 13,402.88-18,495.69-8,297.04

Finding the Fourth Proportional to 13,402.88, 18,495.69 and 8,297.04

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Solution

The fourth proportional to 13,402.88, 18,495.69 and 8,297.04 is: 11,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.88 : 18,495.69 = 8,297.04 : x
  2. Step 2: Convert to fraction form
    13,402.88/18,495.69 = 8,297.04/x
  3. Step 3: Cross multiply
    13,402.88x = 18,495.69 × 8,297.04
  4. Step 4: Simplify right side
    13,402.88x = 153,459,479.76
  5. Step 5: Solve for x
    x = 153,459,479.76/13,402.88
  6. Step 6: Final answer
    x = 11,449.74

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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.