Home / 13,307.88-18,366.48-8,005.44

Finding the Fourth Proportional to 13,307.88, 18,366.48 and 8,005.44

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Solution

The fourth proportional to 13,307.88, 18,366.48 and 8,005.44 is: 11,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.88 : 18,366.48 = 8,005.44 : x
  2. Step 2: Convert to fraction form
    13,307.88/18,366.48 = 8,005.44/x
  3. Step 3: Cross multiply
    13,307.88x = 18,366.48 × 8,005.44
  4. Step 4: Simplify right side
    13,307.88x = 147,031,753.65
  5. Step 5: Solve for x
    x = 147,031,753.65/13,307.88
  6. Step 6: Final answer
    x = 11,048.47

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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.