Home / 13,307.90-19,949.09-8,926.61

Finding the Fourth Proportional to 13,307.90, 19,949.09 and 8,926.61

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Solution

The fourth proportional to 13,307.90, 19,949.09 and 8,926.61 is: 13,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.90 : 19,949.09 = 8,926.61 : x
  2. Step 2: Convert to fraction form
    13,307.90/19,949.09 = 8,926.61/x
  3. Step 3: Cross multiply
    13,307.90x = 19,949.09 × 8,926.61
  4. Step 4: Simplify right side
    13,307.90x = 178,077,601.91
  5. Step 5: Solve for x
    x = 178,077,601.91/13,307.90
  6. Step 6: Final answer
    x = 13,381.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.