Home / 13,152.34-19,728.20-6,124.78

Finding the Fourth Proportional to 13,152.34, 19,728.20 and 6,124.78

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Solution

The fourth proportional to 13,152.34, 19,728.20 and 6,124.78 is: 9,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.34 : 19,728.20 = 6,124.78 : x
  2. Step 2: Convert to fraction form
    13,152.34/19,728.20 = 6,124.78/x
  3. Step 3: Cross multiply
    13,152.34x = 19,728.20 × 6,124.78
  4. Step 4: Simplify right side
    13,152.34x = 120,830,884.80
  5. Step 5: Solve for x
    x = 120,830,884.80/13,152.34
  6. Step 6: Final answer
    x = 9,187.03

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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.