Home / 12,168.51-16,792.32-6,864.45

Finding the Fourth Proportional to 12,168.51, 16,792.32 and 6,864.45

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Solution

The fourth proportional to 12,168.51, 16,792.32 and 6,864.45 is: 9,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.51 : 16,792.32 = 6,864.45 : x
  2. Step 2: Convert to fraction form
    12,168.51/16,792.32 = 6,864.45/x
  3. Step 3: Cross multiply
    12,168.51x = 16,792.32 × 6,864.45
  4. Step 4: Simplify right side
    12,168.51x = 115,270,041.02
  5. Step 5: Solve for x
    x = 115,270,041.02/12,168.51
  6. Step 6: Final answer
    x = 9,472.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.