Home / 14,741.85-20,320.04-9,960.29

Finding the Fourth Proportional to 14,741.85, 20,320.04 and 9,960.29

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Solution

The fourth proportional to 14,741.85, 20,320.04 and 9,960.29 is: 13,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.85 : 20,320.04 = 9,960.29 : x
  2. Step 2: Convert to fraction form
    14,741.85/20,320.04 = 9,960.29/x
  3. Step 3: Cross multiply
    14,741.85x = 20,320.04 × 9,960.29
  4. Step 4: Simplify right side
    14,741.85x = 202,393,491.21
  5. Step 5: Solve for x
    x = 202,393,491.21/14,741.85
  6. Step 6: Final answer
    x = 13,729.18

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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.