Home / 15,427.67-21,289.23-8,713.58

Finding the Fourth Proportional to 15,427.67, 21,289.23 and 8,713.58

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Solution

The fourth proportional to 15,427.67, 21,289.23 and 8,713.58 is: 12,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.67 : 21,289.23 = 8,713.58 : x
  2. Step 2: Convert to fraction form
    15,427.67/21,289.23 = 8,713.58/x
  3. Step 3: Cross multiply
    15,427.67x = 21,289.23 × 8,713.58
  4. Step 4: Simplify right side
    15,427.67x = 185,505,302.30
  5. Step 5: Solve for x
    x = 185,505,302.30/15,427.67
  6. Step 6: Final answer
    x = 12,024.20

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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.