Home / 14,790.36-20,420.46-9,487.56

Finding the Fourth Proportional to 14,790.36, 20,420.46 and 9,487.56

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Solution

The fourth proportional to 14,790.36, 20,420.46 and 9,487.56 is: 13,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.36 : 20,420.46 = 9,487.56 : x
  2. Step 2: Convert to fraction form
    14,790.36/20,420.46 = 9,487.56/x
  3. Step 3: Cross multiply
    14,790.36x = 20,420.46 × 9,487.56
  4. Step 4: Simplify right side
    14,790.36x = 193,740,339.48
  5. Step 5: Solve for x
    x = 193,740,339.48/14,790.36
  6. Step 6: Final answer
    x = 13,099.10

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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.