Home / 15,553.41-21,464.28-8,840.18

Finding the Fourth Proportional to 15,553.41, 21,464.28 and 8,840.18

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Solution

The fourth proportional to 15,553.41, 21,464.28 and 8,840.18 is: 12,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.41 : 21,464.28 = 8,840.18 : x
  2. Step 2: Convert to fraction form
    15,553.41/21,464.28 = 8,840.18/x
  3. Step 3: Cross multiply
    15,553.41x = 21,464.28 × 8,840.18
  4. Step 4: Simplify right side
    15,553.41x = 189,747,991.45
  5. Step 5: Solve for x
    x = 189,747,991.45/15,553.41
  6. Step 6: Final answer
    x = 12,199.77

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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.