Home / 13,307.78-18,367.09-8,002.95

Finding the Fourth Proportional to 13,307.78, 18,367.09 and 8,002.95

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Solution

The fourth proportional to 13,307.78, 18,367.09 and 8,002.95 is: 11,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.78 : 18,367.09 = 8,002.95 : x
  2. Step 2: Convert to fraction form
    13,307.78/18,367.09 = 8,002.95/x
  3. Step 3: Cross multiply
    13,307.78x = 18,367.09 × 8,002.95
  4. Step 4: Simplify right side
    13,307.78x = 146,990,882.91
  5. Step 5: Solve for x
    x = 146,990,882.91/13,307.78
  6. Step 6: Final answer
    x = 11,045.49

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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.