Home / 10,550.79-15,818.37-6,389.82

Finding the Fourth Proportional to 10,550.79, 15,818.37 and 6,389.82

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Solution

The fourth proportional to 10,550.79, 15,818.37 and 6,389.82 is: 9,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,550.79 : 15,818.37 = 6,389.82 : x
  2. Step 2: Convert to fraction form
    10,550.79/15,818.37 = 6,389.82/x
  3. Step 3: Cross multiply
    10,550.79x = 15,818.37 × 6,389.82
  4. Step 4: Simplify right side
    10,550.79x = 101,076,536.99
  5. Step 5: Solve for x
    x = 101,076,536.99/10,550.79
  6. Step 6: Final answer
    x = 9,580.00

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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.