Home / 10,220.10-14,103.88-6,240.66

Finding the Fourth Proportional to 10,220.10, 14,103.88 and 6,240.66

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Solution

The fourth proportional to 10,220.10, 14,103.88 and 6,240.66 is: 8,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.10 : 14,103.88 = 6,240.66 : x
  2. Step 2: Convert to fraction form
    10,220.10/14,103.88 = 6,240.66/x
  3. Step 3: Cross multiply
    10,220.10x = 14,103.88 × 6,240.66
  4. Step 4: Simplify right side
    10,220.10x = 88,017,519.76
  5. Step 5: Solve for x
    x = 88,017,519.76/10,220.10
  6. Step 6: Final answer
    x = 8,612.20

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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.