Home / 10,629.76-14,660.80-9,436

Finding the Fourth Proportional to 10,629.76, 14,660.80 and 9,436

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Solution

The fourth proportional to 10,629.76, 14,660.80 and 9,436 is: 13,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.76 : 14,660.80 = 9,436 : x
  2. Step 2: Convert to fraction form
    10,629.76/14,660.80 = 9,436/x
  3. Step 3: Cross multiply
    10,629.76x = 14,660.80 × 9,436
  4. Step 4: Simplify right side
    10,629.76x = 138,339,308.80
  5. Step 5: Solve for x
    x = 138,339,308.80/10,629.76
  6. Step 6: Final answer
    x = 13,014.34

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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.