Home / 13,701.32-18,903.39-10,820.90

Finding the Fourth Proportional to 13,701.32, 18,903.39 and 10,820.90

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Solution

The fourth proportional to 13,701.32, 18,903.39 and 10,820.90 is: 14,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.32 : 18,903.39 = 10,820.90 : x
  2. Step 2: Convert to fraction form
    13,701.32/18,903.39 = 10,820.90/x
  3. Step 3: Cross multiply
    13,701.32x = 18,903.39 × 10,820.90
  4. Step 4: Simplify right side
    13,701.32x = 204,551,598.33
  5. Step 5: Solve for x
    x = 204,551,598.33/13,701.32
  6. Step 6: Final answer
    x = 14,929.34

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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.