Home / 15,447.69-21,320.91-8,733.42

Finding the Fourth Proportional to 15,447.69, 21,320.91 and 8,733.42

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Solution

The fourth proportional to 15,447.69, 21,320.91 and 8,733.42 is: 12,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.69 : 21,320.91 = 8,733.42 : x
  2. Step 2: Convert to fraction form
    15,447.69/21,320.91 = 8,733.42/x
  3. Step 3: Cross multiply
    15,447.69x = 21,320.91 × 8,733.42
  4. Step 4: Simplify right side
    15,447.69x = 186,204,461.81
  5. Step 5: Solve for x
    x = 186,204,461.81/15,447.69
  6. Step 6: Final answer
    x = 12,053.87

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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.