Home / 15,037.03-20,750.61-8,322.40

Finding the Fourth Proportional to 15,037.03, 20,750.61 and 8,322.40

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Solution

The fourth proportional to 15,037.03, 20,750.61 and 8,322.40 is: 11,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037.03 : 20,750.61 = 8,322.40 : x
  2. Step 2: Convert to fraction form
    15,037.03/20,750.61 = 8,322.40/x
  3. Step 3: Cross multiply
    15,037.03x = 20,750.61 × 8,322.40
  4. Step 4: Simplify right side
    15,037.03x = 172,694,876.66
  5. Step 5: Solve for x
    x = 172,694,876.66/15,037.03
  6. Step 6: Final answer
    x = 11,484.64

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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.