Home / 12,461.10-18,703.80-6,228.15

Finding the Fourth Proportional to 12,461.10, 18,703.80 and 6,228.15

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Solution

The fourth proportional to 12,461.10, 18,703.80 and 6,228.15 is: 9,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.10 : 18,703.80 = 6,228.15 : x
  2. Step 2: Convert to fraction form
    12,461.10/18,703.80 = 6,228.15/x
  3. Step 3: Cross multiply
    12,461.10x = 18,703.80 × 6,228.15
  4. Step 4: Simplify right side
    12,461.10x = 116,490,071.97
  5. Step 5: Solve for x
    x = 116,490,071.97/12,461.10
  6. Step 6: Final answer
    x = 9,348.30

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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.