Home / 12,001.16-18,001.64-4,208.15

Finding the Fourth Proportional to 12,001.16, 18,001.64 and 4,208.15

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Solution

The fourth proportional to 12,001.16, 18,001.64 and 4,208.15 is: 6,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.16 : 18,001.64 = 4,208.15 : x
  2. Step 2: Convert to fraction form
    12,001.16/18,001.64 = 4,208.15/x
  3. Step 3: Cross multiply
    12,001.16x = 18,001.64 × 4,208.15
  4. Step 4: Simplify right side
    12,001.16x = 75,753,656.89
  5. Step 5: Solve for x
    x = 75,753,656.89/12,001.16
  6. Step 6: Final answer
    x = 6,312.19

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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.