Home / 13,899.30-20,858.70-6,113.58

Finding the Fourth Proportional to 13,899.30, 20,858.70 and 6,113.58

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Solution

The fourth proportional to 13,899.30, 20,858.70 and 6,113.58 is: 9,174.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.30 : 20,858.70 = 6,113.58 : x
  2. Step 2: Convert to fraction form
    13,899.30/20,858.70 = 6,113.58/x
  3. Step 3: Cross multiply
    13,899.30x = 20,858.70 × 6,113.58
  4. Step 4: Simplify right side
    13,899.30x = 127,521,331.15
  5. Step 5: Solve for x
    x = 127,521,331.15/13,899.30
  6. Step 6: Final answer
    x = 9,174.66

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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.