Home / 13,799.81-20,636.13-10,248.64

Finding the Fourth Proportional to 13,799.81, 20,636.13 and 10,248.64

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Solution

The fourth proportional to 13,799.81, 20,636.13 and 10,248.64 is: 15,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.81 : 20,636.13 = 10,248.64 : x
  2. Step 2: Convert to fraction form
    13,799.81/20,636.13 = 10,248.64/x
  3. Step 3: Cross multiply
    13,799.81x = 20,636.13 × 10,248.64
  4. Step 4: Simplify right side
    13,799.81x = 211,492,164.18
  5. Step 5: Solve for x
    x = 211,492,164.18/13,799.81
  6. Step 6: Final answer
    x = 15,325.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.