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Finding the Fourth Proportional to 10,569.78, 15,857.01 and 3,550.05

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Solution

The fourth proportional to 10,569.78, 15,857.01 and 3,550.05 is: 5,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,569.78 : 15,857.01 = 3,550.05 : x
  2. Step 2: Convert to fraction form
    10,569.78/15,857.01 = 3,550.05/x
  3. Step 3: Cross multiply
    10,569.78x = 15,857.01 × 3,550.05
  4. Step 4: Simplify right side
    10,569.78x = 56,293,178.35
  5. Step 5: Solve for x
    x = 56,293,178.35/10,569.78
  6. Step 6: Final answer
    x = 5,325.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.