Home / 10,889.89-16,314.28-6,434.26

Finding the Fourth Proportional to 10,889.89, 16,314.28 and 6,434.26

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Solution

The fourth proportional to 10,889.89, 16,314.28 and 6,434.26 is: 9,639.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.89 : 16,314.28 = 6,434.26 : x
  2. Step 2: Convert to fraction form
    10,889.89/16,314.28 = 6,434.26/x
  3. Step 3: Cross multiply
    10,889.89x = 16,314.28 × 6,434.26
  4. Step 4: Simplify right side
    10,889.89x = 104,970,262.36
  5. Step 5: Solve for x
    x = 104,970,262.36/10,889.89
  6. Step 6: Final answer
    x = 9,639.24

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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.