Home / 15,766.84-21,758.41-8,693.52

Finding the Fourth Proportional to 15,766.84, 21,758.41 and 8,693.52

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Solution

The fourth proportional to 15,766.84, 21,758.41 and 8,693.52 is: 11,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.84 : 21,758.41 = 8,693.52 : x
  2. Step 2: Convert to fraction form
    15,766.84/21,758.41 = 8,693.52/x
  3. Step 3: Cross multiply
    15,766.84x = 21,758.41 × 8,693.52
  4. Step 4: Simplify right side
    15,766.84x = 189,157,172.50
  5. Step 5: Solve for x
    x = 189,157,172.50/15,766.84
  6. Step 6: Final answer
    x = 11,997.15

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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.