Home / 14,655.42-20,224.29-7,940.91

Finding the Fourth Proportional to 14,655.42, 20,224.29 and 7,940.91

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Solution

The fourth proportional to 14,655.42, 20,224.29 and 7,940.91 is: 10,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.42 : 20,224.29 = 7,940.91 : x
  2. Step 2: Convert to fraction form
    14,655.42/20,224.29 = 7,940.91/x
  3. Step 3: Cross multiply
    14,655.42x = 20,224.29 × 7,940.91
  4. Step 4: Simplify right side
    14,655.42x = 160,599,266.70
  5. Step 5: Solve for x
    x = 160,599,266.70/14,655.42
  6. Step 6: Final answer
    x = 10,958.35

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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.