Home / 15,721.23-23,560.35-8,690.82

Finding the Fourth Proportional to 15,721.23, 23,560.35 and 8,690.82

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Solution

The fourth proportional to 15,721.23, 23,560.35 and 8,690.82 is: 13,024.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.23 : 23,560.35 = 8,690.82 : x
  2. Step 2: Convert to fraction form
    15,721.23/23,560.35 = 8,690.82/x
  3. Step 3: Cross multiply
    15,721.23x = 23,560.35 × 8,690.82
  4. Step 4: Simplify right side
    15,721.23x = 204,758,760.99
  5. Step 5: Solve for x
    x = 204,758,760.99/15,721.23
  6. Step 6: Final answer
    x = 13,024.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.