Home / 12,110.68-18,166.06-3,345.40

Finding the Fourth Proportional to 12,110.68, 18,166.06 and 3,345.40

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Solution

The fourth proportional to 12,110.68, 18,166.06 and 3,345.40 is: 5,018.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.68 : 18,166.06 = 3,345.40 : x
  2. Step 2: Convert to fraction form
    12,110.68/18,166.06 = 3,345.40/x
  3. Step 3: Cross multiply
    12,110.68x = 18,166.06 × 3,345.40
  4. Step 4: Simplify right side
    12,110.68x = 60,772,737.12
  5. Step 5: Solve for x
    x = 60,772,737.12/12,110.68
  6. Step 6: Final answer
    x = 5,018.11

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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.