Home / 14,715.45-20,307.24-8,343.25

Finding the Fourth Proportional to 14,715.45, 20,307.24 and 8,343.25

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Solution

The fourth proportional to 14,715.45, 20,307.24 and 8,343.25 is: 11,513.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.45 : 20,307.24 = 8,343.25 : x
  2. Step 2: Convert to fraction form
    14,715.45/20,307.24 = 8,343.25/x
  3. Step 3: Cross multiply
    14,715.45x = 20,307.24 × 8,343.25
  4. Step 4: Simplify right side
    14,715.45x = 169,428,380.13
  5. Step 5: Solve for x
    x = 169,428,380.13/14,715.45
  6. Step 6: Final answer
    x = 11,513.64

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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.