Home / 13,009.89-19,515.52-4,125.92

Finding the Fourth Proportional to 13,009.89, 19,515.52 and 4,125.92

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Solution

The fourth proportional to 13,009.89, 19,515.52 and 4,125.92 is: 6,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.89 : 19,515.52 = 4,125.92 : x
  2. Step 2: Convert to fraction form
    13,009.89/19,515.52 = 4,125.92/x
  3. Step 3: Cross multiply
    13,009.89x = 19,515.52 × 4,125.92
  4. Step 4: Simplify right side
    13,009.89x = 80,519,445.45
  5. Step 5: Solve for x
    x = 80,519,445.45/13,009.89
  6. Step 6: Final answer
    x = 6,189.10

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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.