Home / 12,210.13-18,315.06-2,976.13

Finding the Fourth Proportional to 12,210.13, 18,315.06 and 2,976.13

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Solution

The fourth proportional to 12,210.13, 18,315.06 and 2,976.13 is: 4,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.13 : 18,315.06 = 2,976.13 : x
  2. Step 2: Convert to fraction form
    12,210.13/18,315.06 = 2,976.13/x
  3. Step 3: Cross multiply
    12,210.13x = 18,315.06 × 2,976.13
  4. Step 4: Simplify right side
    12,210.13x = 54,507,999.52
  5. Step 5: Solve for x
    x = 54,507,999.52/12,210.13
  6. Step 6: Final answer
    x = 4,464.16

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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.