Home / 15,476.02-21,309.09-12,086.72

Finding the Fourth Proportional to 15,476.02, 21,309.09 and 12,086.72

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Solution

The fourth proportional to 15,476.02, 21,309.09 and 12,086.72 is: 16,642.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.02 : 21,309.09 = 12,086.72 : x
  2. Step 2: Convert to fraction form
    15,476.02/21,309.09 = 12,086.72/x
  3. Step 3: Cross multiply
    15,476.02x = 21,309.09 × 12,086.72
  4. Step 4: Simplify right side
    15,476.02x = 257,556,943.85
  5. Step 5: Solve for x
    x = 257,556,943.85/15,476.02
  6. Step 6: Final answer
    x = 16,642.33

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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.