Home / 15,772.64-21,767.76-9,484.88

Finding the Fourth Proportional to 15,772.64, 21,767.76 and 9,484.88

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Solution

The fourth proportional to 15,772.64, 21,767.76 and 9,484.88 is: 13,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.64 : 21,767.76 = 9,484.88 : x
  2. Step 2: Convert to fraction form
    15,772.64/21,767.76 = 9,484.88/x
  3. Step 3: Cross multiply
    15,772.64x = 21,767.76 × 9,484.88
  4. Step 4: Simplify right side
    15,772.64x = 206,464,591.47
  5. Step 5: Solve for x
    x = 206,464,591.47/15,772.64
  6. Step 6: Final answer
    x = 13,090.05

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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.