Home / 14,905.45-20,571.47-9,615.64

Finding the Fourth Proportional to 14,905.45, 20,571.47 and 9,615.64

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Solution

The fourth proportional to 14,905.45, 20,571.47 and 9,615.64 is: 13,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.45 : 20,571.47 = 9,615.64 : x
  2. Step 2: Convert to fraction form
    14,905.45/20,571.47 = 9,615.64/x
  3. Step 3: Cross multiply
    14,905.45x = 20,571.47 × 9,615.64
  4. Step 4: Simplify right side
    14,905.45x = 197,807,849.79
  5. Step 5: Solve for x
    x = 197,807,849.79/14,905.45
  6. Step 6: Final answer
    x = 13,270.84

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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.