Home / 13,783.83-20,686.20-10,095.63

Finding the Fourth Proportional to 13,783.83, 20,686.20 and 10,095.63

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Solution

The fourth proportional to 13,783.83, 20,686.20 and 10,095.63 is: 15,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.83 : 20,686.20 = 10,095.63 : x
  2. Step 2: Convert to fraction form
    13,783.83/20,686.20 = 10,095.63/x
  3. Step 3: Cross multiply
    13,783.83x = 20,686.20 × 10,095.63
  4. Step 4: Simplify right side
    13,783.83x = 208,840,221.31
  5. Step 5: Solve for x
    x = 208,840,221.31/13,783.83
  6. Step 6: Final answer
    x = 15,151.10

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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.