Home / 8,640.16-11,923.82-4,864.63

Finding the Fourth Proportional to 8,640.16, 11,923.82 and 4,864.63

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Solution

The fourth proportional to 8,640.16, 11,923.82 and 4,864.63 is: 6,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.16 : 11,923.82 = 4,864.63 : x
  2. Step 2: Convert to fraction form
    8,640.16/11,923.82 = 4,864.63/x
  3. Step 3: Cross multiply
    8,640.16x = 11,923.82 × 4,864.63
  4. Step 4: Simplify right side
    8,640.16x = 58,004,888.54
  5. Step 5: Solve for x
    x = 58,004,888.54/8,640.16
  6. Step 6: Final answer
    x = 6,713.40

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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.