Home / 10,351.60-14,285.16-5,635.78

Finding the Fourth Proportional to 10,351.60, 14,285.16 and 5,635.78

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Solution

The fourth proportional to 10,351.60, 14,285.16 and 5,635.78 is: 7,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.60 : 14,285.16 = 5,635.78 : x
  2. Step 2: Convert to fraction form
    10,351.60/14,285.16 = 5,635.78/x
  3. Step 3: Cross multiply
    10,351.60x = 14,285.16 × 5,635.78
  4. Step 4: Simplify right side
    10,351.60x = 80,507,983.31
  5. Step 5: Solve for x
    x = 80,507,983.31/10,351.60
  6. Step 6: Final answer
    x = 7,777.35

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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.