Home / 13,085.40-18,059.64-8,895

Finding the Fourth Proportional to 13,085.40, 18,059.64 and 8,895

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Solution

The fourth proportional to 13,085.40, 18,059.64 and 8,895 is: 12,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.40 : 18,059.64 = 8,895 : x
  2. Step 2: Convert to fraction form
    13,085.40/18,059.64 = 8,895/x
  3. Step 3: Cross multiply
    13,085.40x = 18,059.64 × 8,895
  4. Step 4: Simplify right side
    13,085.40x = 160,640,497.80
  5. Step 5: Solve for x
    x = 160,640,497.80/13,085.40
  6. Step 6: Final answer
    x = 12,276.32

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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.