Home / 13,630.32-18,810.36-8,327.52

Finding the Fourth Proportional to 13,630.32, 18,810.36 and 8,327.52

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Solution

The fourth proportional to 13,630.32, 18,810.36 and 8,327.52 is: 11,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.32 : 18,810.36 = 8,327.52 : x
  2. Step 2: Convert to fraction form
    13,630.32/18,810.36 = 8,327.52/x
  3. Step 3: Cross multiply
    13,630.32x = 18,810.36 × 8,327.52
  4. Step 4: Simplify right side
    13,630.32x = 156,643,649.11
  5. Step 5: Solve for x
    x = 156,643,649.11/13,630.32
  6. Step 6: Final answer
    x = 11,492.29

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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.