Home / 14,715.42-20,307.38-8,001.12

Finding the Fourth Proportional to 14,715.42, 20,307.38 and 8,001.12

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Solution

The fourth proportional to 14,715.42, 20,307.38 and 8,001.12 is: 11,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.42 : 20,307.38 = 8,001.12 : x
  2. Step 2: Convert to fraction form
    14,715.42/20,307.38 = 8,001.12/x
  3. Step 3: Cross multiply
    14,715.42x = 20,307.38 × 8,001.12
  4. Step 4: Simplify right side
    14,715.42x = 162,481,744.26
  5. Step 5: Solve for x
    x = 162,481,744.26/14,715.42
  6. Step 6: Final answer
    x = 11,041.60

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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.