Home / 12,077.04-18,115.47-7,943.16

Finding the Fourth Proportional to 12,077.04, 18,115.47 and 7,943.16

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Solution

The fourth proportional to 12,077.04, 18,115.47 and 7,943.16 is: 11,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.04 : 18,115.47 = 7,943.16 : x
  2. Step 2: Convert to fraction form
    12,077.04/18,115.47 = 7,943.16/x
  3. Step 3: Cross multiply
    12,077.04x = 18,115.47 × 7,943.16
  4. Step 4: Simplify right side
    12,077.04x = 143,894,076.69
  5. Step 5: Solve for x
    x = 143,894,076.69/12,077.04
  6. Step 6: Final answer
    x = 11,914.68

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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.