Home / 14,390.12-19,858.58-8,425.28

Finding the Fourth Proportional to 14,390.12, 19,858.58 and 8,425.28

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Solution

The fourth proportional to 14,390.12, 19,858.58 and 8,425.28 is: 11,627.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.12 : 19,858.58 = 8,425.28 : x
  2. Step 2: Convert to fraction form
    14,390.12/19,858.58 = 8,425.28/x
  3. Step 3: Cross multiply
    14,390.12x = 19,858.58 × 8,425.28
  4. Step 4: Simplify right side
    14,390.12x = 167,314,096.90
  5. Step 5: Solve for x
    x = 167,314,096.90/14,390.12
  6. Step 6: Final answer
    x = 11,627.01

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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.