Home / 15,588.39-21,511.95-8,514.81

Finding the Fourth Proportional to 15,588.39, 21,511.95 and 8,514.81

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Solution

The fourth proportional to 15,588.39, 21,511.95 and 8,514.81 is: 11,750.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,588.39 : 21,511.95 = 8,514.81 : x
  2. Step 2: Convert to fraction form
    15,588.39/21,511.95 = 8,514.81/x
  3. Step 3: Cross multiply
    15,588.39x = 21,511.95 × 8,514.81
  4. Step 4: Simplify right side
    15,588.39x = 183,170,166.98
  5. Step 5: Solve for x
    x = 183,170,166.98/15,588.39
  6. Step 6: Final answer
    x = 11,750.42

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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.