Home / 14,715.75-20,307.81-8,001.43

Finding the Fourth Proportional to 14,715.75, 20,307.81 and 8,001.43

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Solution

The fourth proportional to 14,715.75, 20,307.81 and 8,001.43 is: 11,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.75 : 20,307.81 = 8,001.43 : x
  2. Step 2: Convert to fraction form
    14,715.75/20,307.81 = 8,001.43/x
  3. Step 3: Cross multiply
    14,715.75x = 20,307.81 × 8,001.43
  4. Step 4: Simplify right side
    14,715.75x = 162,491,520.17
  5. Step 5: Solve for x
    x = 162,491,520.17/14,715.75
  6. Step 6: Final answer
    x = 11,042.01

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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.