Home / 15,556.61-21,461.29-10,519.01

Finding the Fourth Proportional to 15,556.61, 21,461.29 and 10,519.01

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Solution

The fourth proportional to 15,556.61, 21,461.29 and 10,519.01 is: 14,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.61 : 21,461.29 = 10,519.01 : x
  2. Step 2: Convert to fraction form
    15,556.61/21,461.29 = 10,519.01/x
  3. Step 3: Cross multiply
    15,556.61x = 21,461.29 × 10,519.01
  4. Step 4: Simplify right side
    15,556.61x = 225,751,524.12
  5. Step 5: Solve for x
    x = 225,751,524.12/15,556.61
  6. Step 6: Final answer
    x = 14,511.61

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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.