Home / 14,905.50-20,569.59-8,618.28

Finding the Fourth Proportional to 14,905.50, 20,569.59 and 8,618.28

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Solution

The fourth proportional to 14,905.50, 20,569.59 and 8,618.28 is: 11,893.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.50 : 20,569.59 = 8,618.28 : x
  2. Step 2: Convert to fraction form
    14,905.50/20,569.59 = 8,618.28/x
  3. Step 3: Cross multiply
    14,905.50x = 20,569.59 × 8,618.28
  4. Step 4: Simplify right side
    14,905.50x = 177,274,486.11
  5. Step 5: Solve for x
    x = 177,274,486.11/14,905.50
  6. Step 6: Final answer
    x = 11,893.23

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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.