Home / 13,652.09-20,478.12-4,292.93

Finding the Fourth Proportional to 13,652.09, 20,478.12 and 4,292.93

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Solution

The fourth proportional to 13,652.09, 20,478.12 and 4,292.93 is: 6,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.09 : 20,478.12 = 4,292.93 : x
  2. Step 2: Convert to fraction form
    13,652.09/20,478.12 = 4,292.93/x
  3. Step 3: Cross multiply
    13,652.09x = 20,478.12 × 4,292.93
  4. Step 4: Simplify right side
    13,652.09x = 87,911,110.09
  5. Step 5: Solve for x
    x = 87,911,110.09/13,652.09
  6. Step 6: Final answer
    x = 6,439.39

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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.