Home / 13,749.32-20,577.23-8,487.65

Finding the Fourth Proportional to 13,749.32, 20,577.23 and 8,487.65

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Solution

The fourth proportional to 13,749.32, 20,577.23 and 8,487.65 is: 12,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.32 : 20,577.23 = 8,487.65 : x
  2. Step 2: Convert to fraction form
    13,749.32/20,577.23 = 8,487.65/x
  3. Step 3: Cross multiply
    13,749.32x = 20,577.23 × 8,487.65
  4. Step 4: Simplify right side
    13,749.32x = 174,652,326.21
  5. Step 5: Solve for x
    x = 174,652,326.21/13,749.32
  6. Step 6: Final answer
    x = 12,702.62

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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.