Home / 10,899.43-15,037.20-6,649.06

Finding the Fourth Proportional to 10,899.43, 15,037.20 and 6,649.06

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Solution

The fourth proportional to 10,899.43, 15,037.20 and 6,649.06 is: 9,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.43 : 15,037.20 = 6,649.06 : x
  2. Step 2: Convert to fraction form
    10,899.43/15,037.20 = 6,649.06/x
  3. Step 3: Cross multiply
    10,899.43x = 15,037.20 × 6,649.06
  4. Step 4: Simplify right side
    10,899.43x = 99,983,245.03
  5. Step 5: Solve for x
    x = 99,983,245.03/10,899.43
  6. Step 6: Final answer
    x = 9,173.25

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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.