Home / 14,799.60-20,422.86-8,427.06

Finding the Fourth Proportional to 14,799.60, 20,422.86 and 8,427.06

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Solution

The fourth proportional to 14,799.60, 20,422.86 and 8,427.06 is: 11,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.60 : 20,422.86 = 8,427.06 : x
  2. Step 2: Convert to fraction form
    14,799.60/20,422.86 = 8,427.06/x
  3. Step 3: Cross multiply
    14,799.60x = 20,422.86 × 8,427.06
  4. Step 4: Simplify right side
    14,799.60x = 172,104,666.59
  5. Step 5: Solve for x
    x = 172,104,666.59/14,799.60
  6. Step 6: Final answer
    x = 11,629.01

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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.