Home / 14,983.40-20,655.78-10,260.20

Finding the Fourth Proportional to 14,983.40, 20,655.78 and 10,260.20

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Solution

The fourth proportional to 14,983.40, 20,655.78 and 10,260.20 is: 14,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,983.40 : 20,655.78 = 10,260.20 : x
  2. Step 2: Convert to fraction form
    14,983.40/20,655.78 = 10,260.20/x
  3. Step 3: Cross multiply
    14,983.40x = 20,655.78 × 10,260.20
  4. Step 4: Simplify right side
    14,983.40x = 211,932,433.96
  5. Step 5: Solve for x
    x = 211,932,433.96/14,983.40
  6. Step 6: Final answer
    x = 14,144.48

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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.