Home / 14,715.88-20,307.96-8,001.60

Finding the Fourth Proportional to 14,715.88, 20,307.96 and 8,001.60

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Solution

The fourth proportional to 14,715.88, 20,307.96 and 8,001.60 is: 11,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.88 : 20,307.96 = 8,001.60 : x
  2. Step 2: Convert to fraction form
    14,715.88/20,307.96 = 8,001.60/x
  3. Step 3: Cross multiply
    14,715.88x = 20,307.96 × 8,001.60
  4. Step 4: Simplify right side
    14,715.88x = 162,496,172.74
  5. Step 5: Solve for x
    x = 162,496,172.74/14,715.88
  6. Step 6: Final answer
    x = 11,042.23

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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.