Home / 11,629.60-16,038.24-7,649.28

Finding the Fourth Proportional to 11,629.60, 16,038.24 and 7,649.28

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Solution

The fourth proportional to 11,629.60, 16,038.24 and 7,649.28 is: 10,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,629.60 : 16,038.24 = 7,649.28 : x
  2. Step 2: Convert to fraction form
    11,629.60/16,038.24 = 7,649.28/x
  3. Step 3: Cross multiply
    11,629.60x = 16,038.24 × 7,649.28
  4. Step 4: Simplify right side
    11,629.60x = 122,680,988.47
  5. Step 5: Solve for x
    x = 122,680,988.47/11,629.60
  6. Step 6: Final answer
    x = 10,549.03

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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.