Home / 15,271.24-21,070.66-8,893.96

Finding the Fourth Proportional to 15,271.24, 21,070.66 and 8,893.96

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Solution

The fourth proportional to 15,271.24, 21,070.66 and 8,893.96 is: 12,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.24 : 21,070.66 = 8,893.96 : x
  2. Step 2: Convert to fraction form
    15,271.24/21,070.66 = 8,893.96/x
  3. Step 3: Cross multiply
    15,271.24x = 21,070.66 × 8,893.96
  4. Step 4: Simplify right side
    15,271.24x = 187,401,607.21
  5. Step 5: Solve for x
    x = 187,401,607.21/15,271.24
  6. Step 6: Final answer
    x = 12,271.54

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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.