Home / 14,905.58-20,571.64-9,615.78

Finding the Fourth Proportional to 14,905.58, 20,571.64 and 9,615.78

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Solution

The fourth proportional to 14,905.58, 20,571.64 and 9,615.78 is: 13,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.58 : 20,571.64 = 9,615.78 : x
  2. Step 2: Convert to fraction form
    14,905.58/20,571.64 = 9,615.78/x
  3. Step 3: Cross multiply
    14,905.58x = 20,571.64 × 9,615.78
  4. Step 4: Simplify right side
    14,905.58x = 197,812,340.44
  5. Step 5: Solve for x
    x = 197,812,340.44/14,905.58
  6. Step 6: Final answer
    x = 13,271.03

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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.