Home / 15,694.48-21,611.02-13,566.24

Finding the Fourth Proportional to 15,694.48, 21,611.02 and 13,566.24

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Solution

The fourth proportional to 15,694.48, 21,611.02 and 13,566.24 is: 18,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.48 : 21,611.02 = 13,566.24 : x
  2. Step 2: Convert to fraction form
    15,694.48/21,611.02 = 13,566.24/x
  3. Step 3: Cross multiply
    15,694.48x = 21,611.02 × 13,566.24
  4. Step 4: Simplify right side
    15,694.48x = 293,180,283.96
  5. Step 5: Solve for x
    x = 293,180,283.96/15,694.48
  6. Step 6: Final answer
    x = 18,680.47

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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.