Home / 15,768.12-21,760.29-8,598.09

Finding the Fourth Proportional to 15,768.12, 21,760.29 and 8,598.09

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Solution

The fourth proportional to 15,768.12, 21,760.29 and 8,598.09 is: 11,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.12 : 21,760.29 = 8,598.09 : x
  2. Step 2: Convert to fraction form
    15,768.12/21,760.29 = 8,598.09/x
  3. Step 3: Cross multiply
    15,768.12x = 21,760.29 × 8,598.09
  4. Step 4: Simplify right side
    15,768.12x = 187,096,931.85
  5. Step 5: Solve for x
    x = 187,096,931.85/15,768.12
  6. Step 6: Final answer
    x = 11,865.52

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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.