Home / 15,269.45-21,069.99-8,553.53

Finding the Fourth Proportional to 15,269.45, 21,069.99 and 8,553.53

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Solution

The fourth proportional to 15,269.45, 21,069.99 and 8,553.53 is: 11,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269.45 : 21,069.99 = 8,553.53 : x
  2. Step 2: Convert to fraction form
    15,269.45/21,069.99 = 8,553.53/x
  3. Step 3: Cross multiply
    15,269.45x = 21,069.99 × 8,553.53
  4. Step 4: Simplify right side
    15,269.45x = 180,222,844.24
  5. Step 5: Solve for x
    x = 180,222,844.24/15,269.45
  6. Step 6: Final answer
    x = 11,802.84

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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.