Home / 11,617.35-16,031.85-6,312.21

Finding the Fourth Proportional to 11,617.35, 16,031.85 and 6,312.21

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Solution

The fourth proportional to 11,617.35, 16,031.85 and 6,312.21 is: 8,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.35 : 16,031.85 = 6,312.21 : x
  2. Step 2: Convert to fraction form
    11,617.35/16,031.85 = 6,312.21/x
  3. Step 3: Cross multiply
    11,617.35x = 16,031.85 × 6,312.21
  4. Step 4: Simplify right side
    11,617.35x = 101,196,403.89
  5. Step 5: Solve for x
    x = 101,196,403.89/11,617.35
  6. Step 6: Final answer
    x = 8,710.80

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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.