Home / 13,965.65-20,955.30-6,570.84

Finding the Fourth Proportional to 13,965.65, 20,955.30 and 6,570.84

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Solution

The fourth proportional to 13,965.65, 20,955.30 and 6,570.84 is: 9,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.65 : 20,955.30 = 6,570.84 : x
  2. Step 2: Convert to fraction form
    13,965.65/20,955.30 = 6,570.84/x
  3. Step 3: Cross multiply
    13,965.65x = 20,955.30 × 6,570.84
  4. Step 4: Simplify right side
    13,965.65x = 137,693,923.45
  5. Step 5: Solve for x
    x = 137,693,923.45/13,965.65
  6. Step 6: Final answer
    x = 9,859.47

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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.