Home / 15,727.32-21,701.88-8,653.32

Finding the Fourth Proportional to 15,727.32, 21,701.88 and 8,653.32

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Solution

The fourth proportional to 15,727.32, 21,701.88 and 8,653.32 is: 11,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.32 : 21,701.88 = 8,653.32 : x
  2. Step 2: Convert to fraction form
    15,727.32/21,701.88 = 8,653.32/x
  3. Step 3: Cross multiply
    15,727.32x = 21,701.88 × 8,653.32
  4. Step 4: Simplify right side
    15,727.32x = 187,793,312.24
  5. Step 5: Solve for x
    x = 187,793,312.24/15,727.32
  6. Step 6: Final answer
    x = 11,940.58

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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.