Home / 15,556.86-21,483.63-11,080.80

Finding the Fourth Proportional to 15,556.86, 21,483.63 and 11,080.80

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Solution

The fourth proportional to 15,556.86, 21,483.63 and 11,080.80 is: 15,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.86 : 21,483.63 = 11,080.80 : x
  2. Step 2: Convert to fraction form
    15,556.86/21,483.63 = 11,080.80/x
  3. Step 3: Cross multiply
    15,556.86x = 21,483.63 × 11,080.80
  4. Step 4: Simplify right side
    15,556.86x = 238,055,807.30
  5. Step 5: Solve for x
    x = 238,055,807.30/15,556.86
  6. Step 6: Final answer
    x = 15,302.30

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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.